The Panther's Claw

Sidney Blackmer

Police Commissioner Thatcher Colt

Rick Vallin

Anthony 'Tony' Abbot (as Ricki Vallin)

Byron Foulger

Everett P. Digberry

Herbert Rawlinson

District Attorney Bill Dougherty

?

Lynn Starr

Miss Spencer

Barry Bernard

Capt. Edgar Walters / Frank Galloway

?

Trude Rosen

Nina Politza

?

Thornton Edwards

Enrico Lombardi

John Ince

Police Captain Mike Flynn

Martin Ashe

Officer Murphy

Walter James

Police Captain Tom Henry

Frank Darien

Samuel Wilkins

?

Joseph DeVillard

Antonio Spogucci (as Joseph M. De Villard)

?

Jacques Vanaire

Guiseppe Bartarelli (as Jack Vanaire)

Willy Castello

John Martin George (as William Castello)