
Brown had major roles in several popular radio shows: He was "John Doe" in the Texaco Star Theater's version of Fred Allen's Allen's Alley,[2] played Irma's love interest Al in My Friend Irma, both "Gillis" and Digby "Digger" O'Dell in The Life of Riley, (a role he reprised for the first incarnation of the television show), "Broadway" in The Damon Runyon Theatre, and "Thorny" the neighbor on the radio version of The Adventures of Ozzie and Harriet. Perhaps his most memorable piece of work is the ‘Broadway’ role; once heard, many find it impossible to think of the narrator of Damon Runyon’s stories as anyone else. It was a measure of Brown’s talent that this quintessentially American character was portrayed by an Englishman. Brown appeared in some notable films: as the inebriated professor in Hitchcock’s Strangers on a Train (1951), The Day the Earth Stood Still (1951, uncredited), and The Wild One (1953); he supplied the voice of "Ro-Man" in the 1953 cult science fiction B-film Robot Monster.
1954Dixieland DroopyMovieas Narrator / Pee Wee Runt (voice) (uncredited)
1953The Wild OneMovieas Bill Hannegan
1953The BigamistMovie
1953Man CrazyMovieas Mr. Duncan
1953Life with TomMovieas Spike (voice) (uncredited)
1953CrazylegsMovieas Keller
1953JenniferMovieas Service Station Attendant (uncredited)
1953Robot MonsterMovieas Ro-Man / Great Guidance (voice)
1953That's My Pup!Movieas Spike (voice) (uncredited)
1952Hans Christian AndersenMovieas Schoolmaster
1951I Love LucyTV showas Mr. Murdoch · 1 episodes
1951Schlitz Playhouse of StarsTV show1 episodes
1951The Day the Earth Stood StillMovieas George Barley
1951Strangers on a TrainMovieas Prof. Collins
1951Symphony in SlangMovieas The Hipster / Noah Webster (voice) (uncredited)
1950The George Burns and Gracie Allen ShowTV showas Harry Morton · 1 episodes
1949The Life of RileyTV showas Digger O'Dell · 1 episodes
1949The Life of RileyMovieas Digger O'Dell
1946The StrangerMovieas Passport Photographer (uncredited)
1945The Horn Blows at MidnightMovieas Lou the waiter (uncredited)