Ils n'ont que vingt ans

Richard Egan Ken Jorgenson

Dorothy McGuire Sylvia Hunter

Sandra Dee Molly Jorgenson

Arthur Kennedy Bart Hunter

Troy Donahue Johnny Hunter

Beulah Bondi Mrs. Emily Hamilton Hamble

Constance Ford Helen Jorgenson

Jack Richardson Claude Andrews

Martin Eric Todd Harper, Handyman at Pine Island Inn

Eleanor Audley Waiting Guest at Molly's College (uncredited)

Marshall Bradford Dr. Matthias (uncredited)

Phil Chambers Sheriff (uncredited)

Joe Connors Driver (uncredited)

Peter Constanti Captain of Yacht (uncredited)

Richard Deacon Pawnbroker (uncredited)

Ann Doran Mrs. Talbert (uncredited)

Gertrude Flynn Helen's Mother (uncredited)

Bonnie Franklin Girl in Dormitory (uncredited)

Everett Glass Dean (uncredited)

Robert Griffin Engelhardt (uncredited)