George Peppard

P.J. Detweiler

Raymond Burr

William Orbison

Gayle Hunnicutt

Maureen Preble

Brock Peters

Waterpark

Wilfrid Hyde-White

Billings Browne

Jason Evers

Jason Grenoble

Coleen Gray

Betty Orbison

Susan Saint James

Linette Orbison

Severn Darden

Shelton Quell

Jane Van Duser

Elinor Silene (as H. Jane Van Duser)

George Furth

Sonny Silene

Barbara Dana

Lita

Herb Edelman

Charlie (as Herbert Edelman)

John Qualen

Poppa

Bert Freed

Police Lieutenant

John Guillermin