Fred Gwynne
— Herman Munster
Yvonne De Carlo
— Lily Munster
Al Lewis
— Grandpa
Jo McDonnell
— Marilyn Munster
K.C. Martel
— Eddie Munster
Sid Caesar
— Dr. Dustin Diablo
Peter Fox
— Det. Glen Boyle
Bob Hastings
— Cousin Phantom of the Opera
Herb Voland
— Police Chief Harry Boyle
Charles Macaulay
— Police Commissioner McCluskey
Colby Chester
— Michael
Joseph Ruskin
— Paulo
Howard Morris
— Cousin Igor
Ezra Stone
— Dr. Lichtliter
Gary Vinson
— Patrolman Larry
Sandy Champion
— Patrolman Pete
Al White
— Prisoner
Billy Sands
— Shorty
Thomas Newman
— Slim
Barry Pearl
— Warren Thurston
Anita Dangler
— Elvira
Dolores Mann
— Mrs. Furnstrom
Hillary Horan
— The Girl
Kenny Rhodes
— The Boy
Read Morgan
— Loader #2
Mickey Deems
— Loader #1
Lou Richards
— Boyfriend (uncredited)
Tom Willett
— Halloween Party Guest (uncredited)
Michael McManus
— Ralph