Beware! The Blob

Robert Walker Jr.

Bobby Hartford

Gwynne Gilford

Lisa Clark

Richard Stahl

Edward Fazio

Richard Webb

Sheriff Jones

Shelley Berman

Mr. Carmel, Hair Stylist

Larry Hagman

Young Hobo

Carol Lynley

Leslie

Godfrey Cambridge

Chester Hargis

Randy Stonehill

Randy Guitar

Cindy Williams

Randy's Girlfriend

Marlene Clark

Mariane Hargis

Burgess Meredith

Old Hobo

Dick Van Patten

Scoutmaster Adleman

Rockne Tarkington

Deputy Williams

Gerrit Graham

Ape Suited Party Guest

J.J. Johnston

Deputy Kelly Davis

Danny Goldman

Bearded Teenager

Del Close

Hobo Wearing eyepatch

Patrick McAllister

Al - Repairman's Assistant

Byron Keith

Bowling Customer

Jack H. Harris

Man Running Across Ice Rink (uncredited)

Sid Haig

Deputy Zed (uncredited)

Burgess Meredith

Old Hobo (uncredited)

Conrad Rothmann

Fireman (uncredited)