Rayford Barnes Actor Tom Simcox Brother John Sprague Actor Jim Boles Actor Vincent Chase Hume Ray Actor Jimmy Joyce Actor Michael Bregan Actor Dee J. Thompson Actor David Fresco Actor Len Hendry Actor Alice Backes Actor Virginia Gregg Actor Betty Harford Actor Doris Lloyd The Callendars' Maid Actor Arnold Lessing Actor Michael Blodgett Actor Mary Scott The Party Guest Actor Pat Renella Actor Cathie Merchant Actor Alfred Hitchcock Host Brendan Dillon Actor Herbert Coleman Producer Gordon Hessler Producer David Friedkin Director, Writer, Producer Alf Kjellin Director Joseph Pevney Director Harvey Hart Director Norman Lloyd Producer, Executive Producer Lewis Davidson Writer Morton S. Fine Producer, Writer Joan Harrison Producer Alfred Hayes Writer James Bridges Writer Joseph M. Newman Director Arthur A. Ross Writer Anthony Terpiloff Writer Robert Bloch Writer