Don Knotts as Hollis Alexander Figg

Elaine Joyce as Ema Letha Kusic

Joe Flynn as Kermit Sanderson

Edward Andrews as Mayor Robert Chisholm

Frank Welker as Prentiss Gates

Yvonne Craig as Glorianna Hastings

Parker Fennelly as Old Charley Spaulding

Bill Zuckert as Commissioner Henderson

Pitt Herbert as Dr. Schmidt

Robert P. Lieb as Commissioner Hayes

Bob Hastings as Chris Groat

Bruce Kirby as Dale Groat

Stuart Nisbet as Gentry Groat

James Millhollin as Funeral Director

Fay DeWitt as Grace

Savannah Bentley as Ethel Purvis

Athena Lorde as Agnes

Bill Quinn as Asst. Atty. Gen. John Carmoni

John Archer as Gerard

Eddie Quillan as Old Man

Benny Rubin as Max

Billy Sands as Bowling Alley Manager

Clay Tanner as Motorcycle Officer

Gordon Armitage as Reporter (uncredited)

Charles Cirillo as Mourner (uncredited)

Ben Frommer as Diner Patron (uncredited)

Wesley Gale as Diner Patron (uncredited)

Kathryn Janssen as Mourner (uncredited)

Chester Jones as Diner Patron (uncredited)

Kenner G. Kemp as Man in Line in Diner (uncredited)

Ron Nyman as Paramedic (uncredited)

Anthony Redondo as Diner Patron (uncredited)

Hank Robinson as Diner Patron (uncredited)

Edwin Rochelle as Townsman (uncredited)

Eddie Smith as Diner Patron (uncredited)

Al Bain as Diner Patron (uncredited)