Frankie Avalon as Todd Armstrong

Dwayne Hickman as Craig Gamble

Deborah Walley as Linda Hughes

Yvonne Craig as Barbara Norris

Robert Q. Lewis as Mr. Pevney

Bobbie Shaw Chance as Nita Elksberg

Aron Kincaid as Freddie Carter

Steven Rogers as Gene

Michael Nader as Bobby

John Boyer as John

Mickey Dora as Mickey

Bill Sampson as Arthur

Patti Chandler as Janet

Salli Sachse as Indian

Mikki Jamison as Mikki

Mary Hughes as Mary

Luree Holmes as Luree

James Brown as Self

Lesley Gore as Self

Jo Collins as Jo (uncredited)

Sigi Engl as Ski Instructor (uncredited)

Annette Funicello as Prof. Sonya Roberts (uncredited)

Ed Garner as Skier (uncredited)

Paul Gleason as Beach Boy In Red Shorts (uncredited)

Dick Miller as Taxi Driver (uncredited)

Nan Morris as Blonde Bombshell (uncredited)

Christopher Riordan as Skier (uncredited)

Astrid Schultz as Astrid (uncredited)