Judy Holliday

Nina Chapman Tracey

Jack Lemmon

Robert Tracey

Jack Carson

Charlie Nelson

Kim Novak

Janis

Luella Gear

Mrs. Edith Chapman

Donald Randolph

Dr. Van Kessel

Donald Curtis

Rick Vidal

Shirlee Allard

Secretary (uncredited)

Leon Alton

Nightclub Patron (uncredited)

Merry Anders

Marsha (uncredited)

Mylee Andreason

Dance Teacher (uncredited)

Frank Arnold

Art Teacher (uncredited)

Fay Baker

Nurse Serena (uncredited)

Eugene Borden

Teddy - Maitre d' (uncredited)

Paul Bradley

Nightclub Patron (uncredited)