Reed Birney. Reed Birney was 26 in The Greatest Man in the World as 'Smidgeon'.
Sudie Bond. Sudie Bond was 52 in The Greatest Man in the World as 'Emma Smurch'.
Howard Da Silva. Howard Da Silva was 72 in The Greatest Man in the World as 'Conkin'.
Brad Davis. Brad Davis was 31 in The Greatest Man in the World as 'Jack Smurch'.
Carol Kane. Carol Kane was 28 in The Greatest Man in the World as 'April'.
John McMartin. John McMartin was 51 in The Greatest Man in the World as 'Ames Herbert'.
Roy Poole. Roy Poole would have been no older than 56 in The Greatest Man in the World 
William Prince. William Prince was 68 in The Greatest Man in the World as 'Secretary of State'.
Russell Horton. Russell Horton was 39 in The Greatest Man in the World as 'Dr. Gresham'.
Richard Kuss. Richard Kuss was 53 in The Greatest Man in the World 
Melinda Rosenthal. Melinda Rosenthal was >> in The Greatest Man in the World as 'Sweeping Woman'.
Henry Fonda. Henry Fonda was 76 in The Greatest Man in the World as 'Self - Series Host (uncredited)'.Ralph Rosenblum. Ralph Rosenblum was 55 in The Greatest Man in the World as 'Director'Tony Mitchell. Tony Mitchell was >> in The Greatest Man in the World as 'Director of Photography'Robert Geller. Robert Geller was >> in The Greatest Man in the World as 'Executive Producer'Susan E. Morse. Susan E. Morse was 29 in The Greatest Man in the World as 'Editor'Lawrence Miller. Lawrence Miller was >> in The Greatest Man in the World as 'Art Direction, Production Design'
James Thurber. James Thurber would have been no older than 66 in The Greatest Man in the World as 'Short Story'Rita Ogden. Rita Ogden was >> in The Greatest Man in the World as 'Hairstylist, Makeup Artist'Barbara Claman. Barbara Claman was >> in The Greatest Man in the World as 'Casting'Robert Pusilo. Robert Pusilo was >> in The Greatest Man in the World as 'Costume Design'Jeff Wanshel. Jeff Wanshel was >> in The Greatest Man in the World as 'Teleplay'
John Buckwalter
Alma Cuervo