Spencer Tracy as Richard Sumner

Katharine Hepburn as Bunny Watson

Gig Young as Mike Cutler

Joan Blondell as Peg Costello

Dina Merrill as Sylvia Blair

Sue Randall as Ruthie Saylor

Neva Patterson as Miss Warriner

Harry Ellerbe as Smithers

Nicholas Joy as Mr. Azae

Diane Jergens as Alice

Merry Anders as Cathy

Ida Moore as Old Lady

Rachel Stephens as Receptionist

Pamela Curran as Woman (uncredited)

Bill Duray as Member of the Board (uncredited)

Harry Evans as Member of the Board (uncredited)

Jesslyn Fax as Mrs. Hewitt (uncredited)

Richard Gardner as Fred (uncredited)

Charles Heard as Member of the Board (uncredited)

Joe Lanza as Dancer (uncredited)

Jack G. Lee as Member of the Board (uncredited)

Renny McEvoy as Man (uncredited)

Shirley Mitchell as Myra Smithers (uncredited)

King Mojave as Member of the Board (uncredited)

Sammy Ogg as Kenny (uncredited)

Don Porter as Don the Elevator Operator (uncredited)

Lou Southern as Dancer (uncredited)

Hal Taggart as Member of the Board (uncredited)

Freda Angela Wyckoff as Dancer (uncredited)