Rosalind Russell as Mother Simplicia

Stella Stevens as Sister George

Binnie Barnes as Sister Celestine

Mary Wickes as Sister Clarissa

Dolores Sutton as Sister Rose Marie

Milton Berle as The Movie Director: The 'In' Group

Arthur Godfrey as The Bishop: The 'In' Group

Van Johnson as Father Chase: The 'In' Group

Robert Taylor as Mr. Farriday: The 'In' Group

Susan Saint James as Rosabelle

Barbara Hunter as Marvel Ann

Alice Rawlings as Patty

Hilarie Thompson as Hilarie

Devon Douglas as Devon

Ellen Moss as Tanya

Cherie Lamour as Cherie

June Fairchild as June

Patricia Eaves as The State Contest Winner: New Mexico

Vivian Gradin as The State Contest Winner: Texas

Janis Eaton as The State Contest Winner: Oklahoma

Barbara Boman as The State Contest Winner: Missouri

Suellen Helland as The State Contest Winner: Illinois

Cindy Lu Rumple as The State Contest Winner: Indiana

Mary Jo Begley as The State Contest Winner: Ohio

Betsy Gindele as The State Contest Winner: Pennsylvania

Tommy Boyce as Self (uncredited)

Michael Christian as Motorcycle Leader (uncredited)

E.V. Di Massa Jr. as Student Protestor (uncredited)

John Findlater as Jud Farriday (uncredited)

Bobby Hart as Self (uncredited)

Jon Hill as Cyclist (uncredited)

Michelle Holmes as Girl at Amusement Park (uncredited)

Tom Logan as Tom (uncredited)

William Lundigan as Mr. Clancy (uncredited)