Richard Hatch as Jan Berry

Bruce Davison as Dean Torrence

Pamela Bellwood as Annie

Floy Dean as Dr. Vivian Sheehan

Denise DuBarry as Susan

Priscilla Cory as Linda

Kelly Ward as Billy

Anne-Marie Martin as Nancy

George D. Wallace as Bill Berry

June Dayton as Clara Berry

Dick Clark as Self

Wolfman Jack as The Jackal

Hank Brandt as Dean Torrence, Sr.

Susan Sullivan as Rainbow

Mike Love as Self

Bruce Johnston as Self

David Byrd as Surgeon

Art Bradford as Army Sergeant

Leonard Stone as Herb Alpert

James Oliver as Engineer

Noah Keen as Jim Arlett

Vicki McLean as Caroline

Inga Neilsen as Kathy

Charles Pitt as Soldier

Art Koulias as Freddie

Jimmy D. Armstrong as Lead Guitar Player - Papa Doo Run Run (uncredited)

Jan Berry as Self (uncredited)

Kristine DeBell as Girl at Birthday Party (uncredited)

Vincent Di Paolo as Spectator (uncredited)

Gary Grubbs as Lead Singer - Sons of the Pioneers (uncredited)

Cary Huff as Dancer at Beach (uncredited)

Harriet Johnston as Backstage Fan (uncredited)

R.C. Keene as Audience Member (uncredited)

Randi Oakes as Girl at Beach Concert (uncredited)

Jim Rush as Bass Player - Papa Doo Run Run (uncredited)

Jim Shippey as Drummer - Papa Doo Run Run (uncredited)

Mark Ward as Rhythm Guitarist - Papa Doo Run Run (uncredited)

Jimmy Williams as Singer Waiting in Wings (uncredited)

Don Zirilli as Keyboard Player - Papa Doo Run Run (uncredited)