 Family therapist Carlfred Broderick appeared on the show ten times, and psychologist Joyce Brothers was one of Carson's most frequent guests.Carson, in general, did not feature prop comedy acts (Carson was not averse to using prop comedy himself); such acts, with Gallagher being a prominent example, more commonly appeared when guest hosts helmed the program.Carson almost never socialized with guests before or after the show; frequent interviewee Orson Welles recalled that "Tonight Show" employees were astonished when Carson visited Welles's dressing room to say hello before a show.