Simon Scott

(1 episode) as Dr Patrick Knight

(1 episode) as Captain

as Metcalf

(110 episodes) as Arnold Slocum

as Dr. Baylor

(1 episode)

as Robert Ten Broeck Stevens

as Gen. Phil Spencer - Chairman of the Joint Chiefs of Staff

as Luftwaffe General

(1 episode) as Sam Tucker

(1 episode) as Brant Hollister

as Col. Barnes

(1 episode) as Gregory McGill

(1 episode) as Dr. Barto

(1 episode) as Dr. Samuel Abbott

as McGuffin

as Capt. Dawson

(1 episode) as Jackson Wyndham

as Hugh Gaynor

as Col. Anderson

as Mr. Kandiss

as George Harrington

as General Jomar

(1 episode) as Harbald

(1 episode) as Jim Cardoff

(1 episode) as Warren Stuart

(1 episode) as Dr. Malcolm Gantley

(1 episode) as Maj. Pete Stanhope

(1 episode) as Dr. John Slaton

(1 episode) as John Lovell

as William Anderson

as Jim Slade (Divorce Lawyer) (uncredited)

as Captain of Submarine, USS Sailfin

as District Attorney

(1 episode) as Gus Becker

as Johnson

(1 episode) as Martin Pierce

as Lt. Kritzman

(1 episode) as The Defender

(1 episode) as Stan Wilson

(1 episode) as Durrell

as Capt. Harvey Adam

as Reeger

(1 episode) as Maj. Pryor

(24 episodes)

(1 episode) as Maj. Wilson

as Lt. Hollis

as Carl Hastings

(1 episode) as Stanley Overton

(1 episode) as Elliot Dunbar

as Robert Allen, Attorney

(1 episode) as Mr. Rogers

as Parker (uncredited)

as Capt. Floyd Henderson (uncredited)