character - Fred Walsh

character - Doctor Denny

character - Self

character - Edward

character - Anthony

character - Max McClain

character - Suburbanite

character - Paul

character - Boa Man (as Rooney Kerwin)

character - Walker

character - Doctor Parker (uncredited)

character - Professor Reeve (uncredited)

character - Claude Benson

character - Harry Richardson

character - Sheriff Ben Williams

character - Dr. George Bana

character - Homer

character - Detective Tom Garrett

character - Old Man

character - Monroe (as Thomas Wood)

character - Alfred

character - Soldier

character - Earl

character - Speedboat Owner

character - Rex

character - Russell Donovan (uncredited)

character - Lester (uncredited)

character - Burke (uncredited)

character - Policeman

character - Detective (as Thomas Wood)

character - Steve Bradford

character - Mr. Sullivan

character - FBI Man #1

character - Nudist (uncredited)

character - Marty Conley (as Thomas Wood)

character - Jeff

character - Ralph Higbee

character - Bill

character - Dr. Hank Tyson (as Thomas Wood)

character - Roland Harcourt

character - Man Mowing Lawn (uncredited)

character - Tentor

character - Tom White

character - Harmon Johnson

character - Rick Bradshaw

character - Tommy Sweetwood

character - Detective Pete Thornton

character - Al Harding

character - The Plumber

character - Mark

character - Sea Captain

character - Bart

character - Steve Matthews

character - Jack Norwall

character - Joe

character - Michael

character - Gary

character - Cole

character - Gene

character - Tony

character - Larry