as Col. Mason
as President
as Grandpa (voice)
as Henry D. Hyde
as Father Nestor
as Frank Halloran
as Deputy Director Brown
as Ford
as Derek's Father
as Walter Warner Sr.
as Dr. Gordon
as Mr. Pike
as Geoffrey Wiggins
as The Banker with Chris
as Ray Mellette
as Obstetrician
as Sumner Murdock
as Dr. Rochelle
as Dr. Ed Johnson
as The Cat in the Hat / Narrator
as Harry Tannenbaum
as Ron Sandler
as Narrator (voice)
as Willie the Wino
as Elmo Tyson
as Francis
as Father Francis Ryan
as Wally
as Bill Cairns
as Dr. Eliot Losen
as Dr. Karl Janss
as Bob Rutherford
as Narrator
as Richard Simmons
as Professor Lloyd Rhodes
as Justice Joseph Crouch
as Mr. Watkins
as Roger Philby
as GI Engineer Walter Maxwell (uncredited)
as Mr. Trapwell (segment "The Scoop")
as Bob Ranier
as Mr. Hoyt
as Charlie Hume
as Clinton Anderson
as Sidney Pomerantz
as Bill Wendover
as President Harris
as Francis Ryan
