Summary
Peter Davison regrets not working more with the other Doctor actors in Doctor Who's 20th-anniversary story, "The Five Doctors."
There was a fear of too many egos on set, which kept the actors apart during filming.
Despite the concerns, there was no unpleasant rivalry and all the actors got along well.
Peter Davison, who played the Fifth Doctor in Doctor Who from 1982 to 1984, expressed his regret regarding the filming of "The Five Doctors," the show's 20th-anniversary story. In this significant episode, Davison joined forces with Patrick Troughton, Jon Pertwee, and newcomer Richard Hurndall, who portrayed the previous Doctors.
During a Q&A session to commemorate the release of the 20th-anniversary storyline on Blu-ray, Davison disclosed his disappointment at not collaborating more with the other Doctor actors. He explained that the assumption was that there would be "too many egos" concerning the roles they played. Here is Davison's comment:
"I've always lamented the fact that our time together was limited," "We were deliberately kept apart, as John believed that the presence of too many egos on set could lead to unpleasant rivalries. Surprisingly enough, such tensions never arose! In reality, we all bonded exceptionally well."
Source: RadioTimes.com