Dean Martin
Dr. Steven Harris
Edward Arnold
The Mayor of New York
Sheree North
Jitterbug Champion
Sid Tomack
Master of Ceremonies
Sig Ruman
Dr. Emile Egelhofer
Raymond Greenleaf
Conductor
Walter Baldwin
Isaiah Jackson
Fritz Feld
Barber (uncredited)
Dabbs Greer
Scouts Leader (uncredited)
Grady Sutton
Gift Shop Clerk (uncredited)
Kathryn Grant
Manicurist (uncredited)
Bess Flowers
Patron at Wonderland Ballroom (uncredited)
Eduard Franz
Dr. Nassau (uncredited)
Charles Fogel
City Official (uncredited)