Frank Shannon

Peril from the Planet Mongo

1966 · Dr. Zarkov

Flash Gordon: The Deadly Ray From Mars

1966 · Dr. Alexis Zarkov

Purple Death from Outer Space

1966 · Dr. Zarkov

Spaceship to the Unknown

1966 · Dr. Hans Zarkov (archive footage)

A Dangerous Profession

1949

Crack-Up

1946 · Train Station Gateman (Uncredited)

The Phantom

1943 · Prof. Davidson (uncredited), Professor Davidson

Batman

1943 · Dr. Hayden

The Secret Code

1942 · Police Commissioner

Ten Gentlemen from West Point

1942 · Senator (uncredited)

Rawhide Rangers

1941 · McDowell

Federal Fugitives

1941 · Hammond

Une dépêche de Reuter

1940 · Mr. O'Malley - Captain of the Nova Scotian (uncredited)

L'Odyssée des Mormons

1940 · Second Man with California Gold News

Wildcat Bus

1940 · Sweeney

Le Retour de Frank James

1940 · Sheriff

Flash Gordon à la Conquête de L'Univers

1940 · Dr. Zarkov

Emergency Squad

1940 · Construction Supervisor at Elevator

The Night of Nights

1939 · Frank, the Bartender (uncredited)

Rulers of the Sea

1939 · Kelsey (Uncredited)

Torchy Blane... Playing with Dynamite

1939 · Inspector McTavish

Torchy Runs for Mayor

1939 · Captain McTavish

Pacific Express

1939 · Old Man (uncredited)

Torchy Blane in Chinatown

1939 · Police Capt. McTavish

Ma femme en feu

1938 · Police Lieutenant (uncredited)

Torchy Gets Her Man

1938 · Police Captain McTavish (uncredited)

Mars Attacks the World

1938 · Dr. Alexis Zarkov

Vous ne l'emporterez pas avec vous

1938 · Mac (uncredited)

Torchy Blane in Panama

1938 · Captain McTavish

Over the Wall

1938 · Duke Slattery - Policeman with Warrant

Flash Gordon's Trip to Mars

1938 · Dr. Zarkov

Rocket Ship

1938 · Dr. Hans Zarkov

The Ship That Died

1938 · Minor Role (uncredited)

Blondes at Work

1938 · Capt. McTavish

Mannequin

1938 · Police Sergeant at Jail (Uncredited)

The Adventurous Blonde

1937 · Captain McTavish