Frankie Avalon

as Frankie / Potato Bug

Annette Funicello

as Dee Dee

Martha Hyer

as Vivien Clements

Don Rickles

as Big Drag

Harvey Lembeck

as Eric Von Zipper

Delores Wells

as Sniffles

John Ashley

as Johnny

Jody McCrea

as Deadhead

Candy Johnson

as Candy

Meredith MacRae

as Animal

Keenan Wynn

as Harvey Huntington Honeywagon

Elizabeth Montgomery

as Lady Bug (voice)

Janos Prohaska

as Clyde

Boris Karloff

as Art Dealer

James Westerfield

as Cop #2

Donna Loren

as Donna

Stevie Wonder

as Little Stevie Wonder

Timothy Carey

as South Dakota Slim

Danielle Aubry

as Lady Bug

Paul Smith

as Cop #1

Val Warren

as The Teenage Werewolf Monster

Mary Kovacs

as Old Lady #1

Renie Riano

as Old Lady #2

Shelia Stephenson

as Secretary

Ronnie Dayton

as Potato Bug

Alberta Nelson

as Rat Pack

Linda Rogers

as Rat Pack

John Macchia

as Rat Pack

Bob Harvey

as Rat Pack

Andy Romano

as Rat Pack

Jerry Brutsche

as Rat Pack

Allen Fife

as Rat Pack

Guy Hemric

as Surfer

Gary Usher

as Surfer

Roger Christian

as Surfer

Frank Alesia

as Surfer

Johnny Fain

as Surfer

Mickey Dora

as Surfer

Duane King

as Surfer

Michael Nader

as Surfer

Ned Wynn

as Surfer

Ed Garner

as Surfer

Bud Kemp

as Surfer

Jay Mullin

as Surfer

Luree Holmes

as Surfer

Darlene Lucht

as Surfer

Mary Hughes

as Surfer

Salli Sachse

as Surfer

Linda Benson

as Surfer

Nancy Long

as Surfer

Linda Opie Bent

as Surfer

Patti Chandler

as Surfer

Julie O’Conner

as Surfer