The Ultimate Guide to Young Sheldon's Complete Cast & Characters (All Seasons)

Summary

Young Sheldon is a spin-off of The Big Bang Theory that takes fans back to Sheldon Cooper's childhood, featuring his family and supporting characters.

The show's continuity has drawn some criticism, but it still endeavors to establish a connection with The Big Bang Theory. In the prequel series, the main cast members, including Iain Armitage, Jim Parsons, Zoe Perry, Lance Barber, Montana Jordan, Raegan Revord, and Annie Potts, bring their characters to life.

The Young Sheldon cast collaborates to transport fans back to Sheldon Cooper's childhood in Texas, providing an exciting glimpse into the socially inept genius' family life. As a spin-off of the immensely popular show, The Big Bang Theory, this sitcom premiered in 2017 and initially aired alongside its parent series. However, since the conclusion of The Big Bang Theory in 2019, Young Sheldon has stood independently. The events of Young Sheldon unfold approximately two decades before the beginning of The Big Bang Theory.

While the primary aim of this prequel is to expand upon the original show's storyline, it takes a more relaxed approach to maintaining continuity, which has generated some criticism. Nevertheless, the show does attempt to establish a connection with The Big Bang Theory in order to garner support from its dedicated following. Despite the show's title, Young Sheldon can be considered an ensemble TV show, as each main character has their own individual storylines. Additionally, there are also overarching narratives that involve the entire Young Sheldon cast, featuring both familiar and emerging actors.

Iain Armitage as Sheldon Cooper/Jim Parsons as Adult Sheldon

Iain Armitage is the actor who portrays the titular character in Young Sheldon. He takes on the role previously played by Jim Parsons, who portrayed Sheldon's older version in The Big Bang Theory. Sheldon is known as a genius of his generation and has a strong inclination towards science, particularly theoretical physics, which is why he chooses to pursue it at CalTech. Throughout the series, we see significant changes in Sheldon's life. The continuity between his childhood and adulthood, as mentioned in TBBT, is becoming apparent in Young Sheldon. This includes his growing distance from his father and developing a closer relationship with his mother.

Despite his young age, Armitage has already made appearances in several other projects apart from Young Sheldon. He gained recognition through his YouTube series, Iain Loves Theatre, where he reviewed stage shows. Additionally, he has been seen in Big Little Shots, portrayed Ziggy Chapman in Big Little Lies, and made a guest appearance in Law & Order: Special Victims Unit season 18. In terms of the big screen, he provided the voice for young Shaggy Rogers in Scoob! and voiced the character Chase in PAW Patrol: The Movie.

Meanwhile, Parsons assumes the role of the adult narrator in Young Sheldon. In addition to his career-defining portrayal as the older Sheldon Cooper in The Big Bang Theory, which earned him four Primetime Emmy Awards, he also showcased his talent as Tommy Boatwright in both the Broadway and TV adaptations of The Normal Heart. Furthermore, he made notable appearances in Hidden Figures, Extremely Wicked, Shockingly Evil and Vile, and The Boys In The Band.

Zoe Perry as Mary Cooper

Zoe Perry takes on the role of Mary Cooper in the Young Sheldon cast, inheriting the character from her real-life mother. Laurie Metcalf portrayed Mary in The Big Bang Theory. Known for her unwavering devotion to Southern Baptist beliefs, Mary insists that her family adheres to their faith, despite their resistance. While fiercely protective of her children, she has a special fondness for Sheldon and fully embraces his unique quirks and eccentricities. The show delves into the turmoil in her marriage due to George's infidelity, a situation that has strained their relationship.

Perry is originally from Chicago, and her career in the entertainment industry took off when she relocated to New York City in search of television opportunities. Since 1992, when she made her debut as the young Jackie in Roseanne, she has actively participated in numerous projects. Perry has also made appearances as a guest in popular shows such as Law & Order: Criminal Intent, Private Practice, Grey's Anatomy, NCIS, and Scandal.

Lance Barber as George Cooper Sr.

Lance Barber portrays George Cooper Sr., Sheldon's controversial father, in the Young Sheldon cast. Unlike the other characters in The Big Bang Theory, George Cooper is the only one without an older predecessor since he is already deceased during the events of the original series. While initially depicted as an irresponsible father who only indulged in drinking and wasting time, Young Sheldon presents a different version of the character. He is portrayed as a dedicated family man who tirelessly works for his loved ones, creating a continuity issue within the show. However, recently the storyline of George's infidelity on Young Sheldon has begun to unfold.

Montana Jordan as George "Georgie" Cooper Jr.

Lance Barber, a Michigan-born actor, began his career at the Barn Theatre during his childhood, where he had the opportunity to work alongside Jennifer Garner. His breakthrough occurred in 2005 when he starred in the HBO TV show The Comeback. Over the years, Barber has become renowned for his appearances in various television shows including It's Always Sunny in Philadelphia, Black-ish, Brooklyn Nine-Nine, and Gilmore Girls. Interestingly, he even assumed the role of Jimmy Speckerman, the tormentor of Leonard, in The Big Bang Theory.

Montana Jordan portrays George "Georgie" Cooper Jr. in the Young Sheldon cast, Sheldon's older brother. Details regarding the character were scant in The Big Bang Theory until his appearance just before Sheldon's wedding. The spin-off delves deeper into his life prior to him becoming the accomplished owner of the Mr. Tire dealership in Texas. Although not as academically inclined as Sheldon, Georgie possesses impressive entrepreneurial abilities. As the show progresses, he embraces fatherhood, and there are indications that his past failed marriages are being addressed in recent seasons.

Raegan Revord as Missy Cooper

Montana Jordan, originally from Texas, kick-started his acting career by landing the role of Josh Brolin's son in the film titled The Legacy of Whitetail Deer Hunter. Interestingly, this movie was released after he had already made his debut on the Young Sheldon cast. Additionally, he portrayed the younger version of Georgie in a special crossover episode that united The Big Bang Theory with its spin-off series. To date, these projects constitute Jordan's sole forays into the realms of cinema and television.

Raegan Revord takes on the role of Missy Cooper, Sheldon's twin sister. Unlike her brother, she may not excel academically, but she possesses a remarkable emotional intelligence, as evident in their parental evaluations. Contrary to their constant squabbles, the siblings share a strong bond. Moreover, in The Big Bang Theory, it is revealed that Missy takes immense pride in Sheldon's accomplishments. However, recent seasons of Young Sheldon have portrayed Missy as much less intellectually gifted than her character on The Big Bang Theory, suggesting that the latter show may have altered her original depiction.

Revord, who was born in 2008, gained significant recognition for her portrayal in the Young Sheldon cast. In addition to her prominent role, she made notable guest appearances on shows including Modern Family, Wish Upon, and Alexa & Katie.

Annie Potts as Connie Tucker/Meemaw

Annie Potts portrays Connie Tucker, known as Meemaw, the beloved grandmother of Sheldon in the Young Sheldon series. Unlike her later persona as a gentle elderly woman in The Big Bang Theory, the Young Sheldon version of Meemaw is bashful and occasionally sarcastic. She often clashes with George but strives to maintain a civil relationship with him for the sake of the family.

Emily Osment as Mandy McAllister

Emily Osment made her debut on the Young Sheldon series in season 5, embodying the character of Mandy McAllister. Gradually, she transitioned into a full-time member of the cast in season 6 as her character, Mandy, embarked on a serious relationship with Georgie. Eventually, she even became a mother to his child. In the world of The Big Bang Theory, there is speculation that Mandy may have become one of Georgie's former wives. However, thus far, she has primarily portrayed his considerably older girlfriend and the mother of his child. Hailing from Los Angeles, Osment entered the entertainment industry as a child artist in numerous television shows before landing roles in the renowned Spy Kids franchise.

In 2005, Osment rose to prominence with her breakout performance as Lilly Truscott in Hanna Montana. Following her time on the show during its third and fourth seasons, she embarked on a career in music, collaborating with the band Eve 6. In 2013, she made a triumphant return to television, landing a leading role in Cleaners, followed by notable appearances in Young & Hungry, The Kominsky Method, and Almost Family. Additionally, she lent her vocal talents to the beloved Beverly Hills Chihuahua franchise, portraying the character Pep.

Young Sheldon Supporting Cast

Portraying the character of Professor John Sturgis, Wallace Shawn assumes the role of Sheldon's initial mentor. Professor Sturgis, an experienced educator, serves as Sheldon's introduction to the realm of theoretical physics. Additionally, he had a romantic involvement with Meemaw for a certain period. Recognized for his notable contributions in Clueless, Princess Bride, Toy Story films, The Cosby Show, Star Trek: Deep Space Nine, and Gossip Girl, the actor is widely renowned.

Ed Begley Jr. portrays Dr. Gant Linkletter, who becomes Sheldon's new mentor at college. Dr. Linkletter is also the rival of Dr. Linkletter at East Texas Tech. Ed Begley Jr. is known for his roles in St. Elsewhere, Blue Collar, An Officer and a Gentleman, Batman Forever, Pineapple Express, and CHiPS.

Matt Hobby plays Pastor Jeff, with whom Mary works closely at church. Pastor Jeff frequently challenges Sheldon's beliefs through logical exercises. Matt Hobby has also appeared in Boardwalk Empire, Hart of Dixie, and The Grinder.

Billy Sparks, played by Wyatt McClure, is mentioned by Sheldon as his neighbor in The Big Bang Theory. Wyatt McClure portrays Billy Sparks in the Young Sheldon cast and his character has an unrequited love for Missy. Apart from his role in Young Sheldon, he is also well-known for his appearances in I See You and Psychos.

Portraying Billy's mother, Brenda Sparks, is Melissa Peterman. Brenda Sparks is mentioned as George's first mistress in The Big Bang Theory, following her separation from her husband. Melissa Peterman has previously been seen in Reba and has served as the host for Bet On Your Baby and The Singing Bee.

Billy Gardell plays Herschel Sparks, the patriarch of the Sparks family. Similar to George, Herschel often faces nagging from his wife until he decides to separate from her. Billy Gardell is well-known for his roles in Mike and Molly, as well as Bob Hearts Abishola.

Ryan Phuong takes on the role of Tam Nguyen, Sheldon's original best friend. In The Big Bang Theory, it is revealed that they had a falling out when Tam chose a girl over moving to Pasadena with Sheldon. However, they eventually reconcile when Tam visits Sheldon at CalTech, rekindling their friendship. Ryan Phuong has also appeared in Shameless and The Thundermans.

Craig T. Nelson and Dale Ballard - Meemaw reconnects with Dale Ballard after her breakup with Dr. Sturgis. Dale, portrayed by Craig T. Nelson, happens to be Georgie’s business mentor in Young Sheldon. Craig T. Nelson is well-known for his performances in Coach and Parenthood, and has also appeared in films like Poltergeists, Turner & Hooch, and The Devil's Advocate.

Reba McEntire as June - June, Dale's ex-wife, makes occasional appearances and is played by Reba McEntire. Reba McEntire, widely recognized as "the Queen of Country," has had a successful music career. She has also been a part of the Broadway musical Annie Get Your Gun and TV shows such as Tremors and Reba.

McKenna Grace takes on the role of Paige Swanson, another child prodigy who crosses paths with Sheldon. Their relationship is often filled with conflict, but they find common ground through shared experiences. At one point, Sheldon even develops feelings for Paige. Grace has made appearances in various television shows including The Young and the Restless, Once Upon a Time, Fuller House, and Designated Survivor. She has also graced the big screen, starring in films such as Independence Day: Resurgence, Gifted, I, Tonya, Ready Player One, Captain Marvel, and Ghostbusters: Afterlife.

Portraying Linda Swanson, Paige's mother, is Andrea Anders. Anders is well-known for her roles in popular sitcoms like Joey, The Class, Modern Family, and Better Off Ted. She has recently made appearances in Ted Lasso and Cruel Summer.

Doc Farrow, portrayed by Assistant Coach Wilkins, was originally Sheldon's P.E. teacher at Medford High. However, in Young Sheldon, Coach Wilkins has also become one of George's closest friends. Doc Farrow has made notable appearances in The Good Place, Curb Your Enthusiasm, and the movie Bombshell.

Valerie Mahaffey brings Victoria MacElroy, Sheldon's homeroom and English teacher, to life. Mahaffey's career took off with her role in the soap opera The Doctors, and since then, she has made appearances in various shows including Northern Exposure, Wings, Desperate Housewives, Devious Maids, and Big Sky. Additionally, she has starred in movies such as Senior Trip, Jungle 2 Jungle, Sully, and French Exit.

Hubert Givens, played by Brian Stepanek, is Sheldon's science teacher at Medford High. Stepanek is well-known for portraying Arwin Hawkhauser in The Suite Life of Zack & Cody and Sector Seven Agent in Transformers.

Mr. Gene Lundy, portrayed by Jason Alexander, is the drama teacher at Medford High School. Alexander is most famous for his role as George Costanza in Seinfeld and has also appeared in Curb Your Enthusiasm and Marvelous Mrs. Maisel. Additionally, Alexander was part of the cast for Pretty Woman and Shallow Hal.

Daniel Pinnock takes on the role of Evelyn Ingram, Sheldon's math teacher at Medford High. Pinnock brings his experience from previous shows such as This Is Us, The Undertaker's Wife, Scandal, and Ghosts.

Rex Linn portrays Tom Petersen, the Principal of Medford High. Linn's impressive filmography includes appearances in Wyatt Earp, Rush Hour, Cheaper by the Dozen, Django Unchained, A Million Ways To Die In The West, Doogie Howser, M.D., 3rd Rock from the Sun, Nashville, Better Call Saul, Lethal Weapon, and The Kominsky Method.

Nancy Linehan Charles stars as Peg, Pastor Jeff's sassy secretary, in the role of Mary. Known for her appearances in Minority Report, The Stepfather, Criminal Minds, and Grimm.

London Cheshire takes on the role of Marcus, Missy's first boyfriend in Young Sheldon. Additionally, Cheshire has also been featured in 9-1-1.

Chris Wylde takes on the role of Glenn, the owner of King Kong Comics, a popular comic book store. With his notable performances in General Hospital, The DUFF, Space Cowboys, and The Revenant, Wylde brings depth to the character.

Sarah Baker brings Sheryl Hutchins, the librarian at Medford High, to life. Recognized for her roles in the Campaign, Mascots, The Kominsky Method, and Louie, Baker adds her unique talent to the film.

Isabel May portrays Veronica, Georgie's initial infatuation and potential future spouse. She gained recognition for her role in the Netflix series, Alexa & Katie. Mary Grill, known for her appearances in various popular shows such as The Mindy Project, Veep, Father Figures, and Mad Men, plays Officer Robin, Pastor Jeff's second wife.

Ava Allan portrays the character Jana in Young Sheldon, taking over after Veronica's disappearance. Jana becomes Georgie's new romantic interest. Ava Allan has previously appeared in popular TV shows such as Pretty Little Liars, Modern Family, and Suits.

Dan Byrd plays the role of Pastor Rob, who serves as the youth pastor and teaches the children during Sunday school. Pastor Rob becomes entangled in a controversial storyline in Young Sheldon, where Mary, George's wife, mistakenly believes he is cheating on her and may have tried to pursue a romantic connection with him. Dan Byrd is recognized for his notable performances in A Cinderella Story, Easy A, and Cougar Town.

Rachel Bay Jones portrays Audrey McAllister in the cast of Young Sheldon. She takes on the role of Mandy's mother and also serves as the grandmother to Georgie's child. Jones garnered much recognition for her portrayal of Heidi Hanson in Dear Evan Hanson, for which she received both an Emmy and Grammy Award.

Will Sasso is cast as Jim McAllister in Young Sheldon. He plays the part of Mandy's father and the grandfather of Georgie's baby. Sasso is a comedic actor who gained fame through his appearances on the sketch comedy show Mad TV. Additionally, he has had roles in Less Than Perfect, How I Met Your Mother, and United We Fall.