John Conrad, alias Johnny Salvo

Ray Danton

Maria Craven

Leigh Snowdon

Maria Craven

Leigh Snowden

Don Kastner

Grant Williams

Chief Agent Alec Conrad

Onslow Stevens

Philip Bormann

Raymond Bailey

Agent Maury Saxton

Judson Pratt

Agent Pill Schwartz

Jack Kruschen

Agent Harris

Floyd Simmons

Milo

Mel Welles

Warden Lewis

Alexander Campbell

Mrs. Pulenski (as Karen Verne)

Kaaren Verne

Mr. Pulenski

Maurice Doner

Bill MacReady

Jess Kirkpatrick

Parker

Arthur Ranson

Agent Parker

Arthur Hanson

Pomeroy

Richard Cutting

Agent Pomeroy

Richard H. Cutting

Bus Station Clerk

George Mather

Bus Station Attendant

George E. Mather

Mama Gomez

Amapola Del Vando

Redding

Vernon Rich

Mrs. Flynn

Ezelle Poule

Ernst R. Von Theumer

Dan Sturkie