Tony Randall as Dr. Lao / The Abominable Snowman / Merlin the Magician / Apollonius of Tyana / Pan / The Giant Serpent / Medusa / Audience Member

Barbara Eden as Angela Benedict

Arthur O'Connell as Clint Stark

John Ericson as Ed Cunningham / Transformed Pan

Noah Beery Jr. as Tim Mitchell

Lee Patrick as Mrs. Howard Cassin

Minerva Urecal as Kate Lindquist

John Qualen as Luther Lindquist

Frank Kreig as Peter Ramsey

Peggy Rea as Mrs. Peter Ramsey

Eddie Little Sky as George C. George

Royal Dano as Carey

Argentina Brunetti as Sarah Benedict

John Doucette as Lucas

Dal McKennon as Lean Cowboy

Frank Cady as Mayor James Sargent

Chubby Johnson as Fat Cowboy

Douglas Fowley as Toothless Cowboy

Kevin Tate as Mike Benedict

Betsy Hale as Little Girl

George Cisar as Drunken Townsman (uncredited)

George J. Lewis as Mr. Frisco (uncredited)