Actor
- Capone (1975) .... Warden J. Johnson
- So Evil, My Sister (1974) .... Dr. Thomas
- Buck and the Preacher (1972) .... George
- The ABC Afternoon Playbreak (1972) .... (1 episode, 1973)
- El Sabor de la venganza (Taste of the Savage) (1971) ....
- To Rome with Love (1969) .... Headmaster (2 episodes, 1969-1971)
- The Destructors (1968) .... Bushnell
- Destination Inner Space (1966) .... Dr. James
- Branded Yellow for Courage (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Call to Glory: Part 3 (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Call to Glory: Part 2 (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Assassins: Part 2 (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Golden Fleece (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Assassins: Part 1 (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Ghost of Murietta (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Wolfers (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded McCord's Way (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Barbed Wire (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Headed for Doomsday (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded A Destiny Which Made Us Brothers (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Kellie (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded This Stage of Fools (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Call to Glory: Part 1 (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Nice Day for a Hanging (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Cowards Die Many Times (1966) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (37 episodes, 1965-1966)
- Branded Judge Not (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Romany Roundup: Part 2 (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded That the Brave Endure (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Mightier Than the Sword (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Fill No Glass for Me: Part 2 (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Salute the Soldier Briefly (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Richest Man in Boot Hill (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Now Join the Human Race (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded A Proud Town (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Vindicators (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene)
- Branded A Taste of Poison (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Price of a Name (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded I Killed Jason McCord (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded $10,000 for Durango (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Seward's Folly (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Fill No Glass for Me: Part 1 (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Leap Upon Mountains.... (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded Romany Roundup: Part 1 (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Bar Sinister (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- Branded The Greatest Coward on Earth (1965) .... Cavalry Colonel (Opening Credits Court Martial Scene) (uncredited)
- 77 Sunset Strip Bullets for Santa (1961) .... David Bonner
- 77 Sunset Strip Stranger Than Fiction (1960) .... Arnold Rediger
- Adventures of the Sea Hawk (1958) .... Commander John 'Pliny' Hawk / ... (26 episodes, 1958)
- The Unknown Terror (1957) .... Dan Matthews
- Dr. Hudson's Secret Journal (1956) .... Dr. Wayne Hudson (8 episodes, 1955-1957)
- Screen Snapshots: Hollywood Plays Golf (1955) .... Himself
- TV Reader's Digest (1955) .... General Oliver Otis Howard / ... (2 episodes, 1956)
- The High and the Mighty (1954) .... Howard Rice
- Make Haste to Live (1954) .... Josh Blake
- Models, Inc. (1952) .... John Stafford
- Crawford Mystery Theatre (1951) .... Host / Moderator
- Experiment Alcatraz (1950) .... Dr. Ross Williams
- Lux Video Theatre (1950) .... (2 episodes, 1954-1957)
- Radar Secret Service (1950) .... Bill Travis
- The Bigelow Theatre (1950) .... (2 episodes, 1951)
- Screen Snapshots: Motion Picture Mothers, Inc. (1949) .... Himself
- The Fighting Kentuckian (1949) .... Blake Randolph
- The Outlaw (1948) .... Face on Wanted Poster, from Texas Rangers Ride Again (uncredited)
- I, Jane Doe (1948) .... William Hilton
- Love from a Stranger (1947) .... Nigel Lawrence
- Public Prosecutor (1947) .... Stephen Allen - Public Prosecutor (1947-48)
- Screen Snapshots Series 23, No. 1: Hollywood in Uniform (1943) .... Himself
- The Undying Monster (1942) .... Oliver Hammond
- Isle of Missing Men (1942) .... Merrill Hammond
- Hedda Hopper's Hollywood No. 5 (1942) .... Himself (uncredited)
- Submarine Raider (1942) .... Commander Chris Warren
- The Man Who Returned to Life (1942) .... David Hampton Jameson aka George Bishop
- A Tragedy at Midnight (1942) .... Greg Sherman
- Three Girls About Town (1941) .... Tommy Hopkins
- Father Takes a Wife (1941) .... Frederic Osborne Junior
- Tight Shoes (1941) .... Jimmy Rupert
- The Mad Doctor (1941) .... Gil Sawyer
- The Invisible Woman (1940) .... Richard Russell
- The Texas Rangers Ride Again (1940) .... Jim Kingston
- The Philadelphia Story (1940) .... George Kittredge
- The Man from Dakota (1940) .... Lt. Oliver Clark
- Green Hell (1940) .... Hal Scott
- Disputed Passage (1939) .... John Wesley Beaven
- What a Life (1939) .... Mr. Nelson
- Bulldog Drummond's Bride (1939) .... Col. Hugh Chesterton 'Bulldog' Drummond
- Grand Jury Secrets (1939) .... John Keefe
- Bulldog Drummond's Secret Police (1939) .... Capt. Hugh C. 'Bulldog' Drummond
- Arrest Bulldog Drummond (1939) .... Capt. Hugh Chesterton 'Bulldog' Drummond
- Touchdown, Army (1938) .... Brandon Culpepper
- Prison Farm (1938) .... Dr. Roi Conrad
- Bulldog Drummond's Peril (1938) .... Capt. Hugh 'Bulldog' Drummond
- Penitentiary (1938) .... William Jordan
- Bulldog Drummond in Africa (1938) .... Capt. Hugh Chesterton 'Bulldog' Drummond
- Hitting a New High (1937) .... Jimmy James
- Hold 'Em Navy (1937) .... Chuck Baldwin
- Sunday Night at the Trocadero (1937) .... Himself
- Bulldog Drummond Comes Back (1937) .... Captain Hugh 'Bulldog' Drummond
- Lost Horizon (1937) .... George Conway
- Mountain Music (1937) .... Ardinger Burnside
- Let Them Live (1937) .... Dr. Paul Martin
- Bulldog Drummond's Revenge (1937) .... Capt. Hugh Chesterton 'Bulldog' Drummond
- Easy to Take (1936) .... Rodney Garfield
- Border Flight (1936) .... Lt. Dan Conlon
- Thirteen Hours by Air (1936) .... Freddie Scott
- Soak the Rich (1936) .... Kenneth "Buzz" Jones
- Valiant Is the Word for Carrie (1936) .... Paul Darnley
- Millions in the Air (1935) .... Eddie Warren
- Annapolis Farewell (1935) .... Duncan Haley
- Four Hours to Kill! (1935) .... Assistant repairman (as John Cox Jr.)
- Car 99 (1935) .... Trooper Carney
- One Hour Late (1934) .... Elevator Operator (uncredited)


