Frank Shannon

Peril from the Planet Mongo 12th December 1966 as Dr. Zarkov

Flash Gordon: The Deadly Ray From Mars 21st March 1966 as Dr. Alexis Zarkov

Purple Death from Outer Space 1st January 1966 as Dr. Zarkov

Spaceship to the Unknown 1st January 1966 as Dr. Hans Zarkov (archive footage)

A Dangerous Profession 10th December 1949

Crack-Up 6th September 1946 as Train Station Gateman (Uncredited)

The Phantom 24th December 1943 as Prof. Davidson (uncredited)

The Phantom 24th December 1943 as Professor Davidson

Batman 16th July 1943 as Dr. Hayden

The Secret Code 4th September 1942 as Police Commissioner

Ten Gentlemen from West Point 26th June 1942 as Senator (uncredited)

Rawhide Rangers 18th July 1941 as McDowell

Federal Fugitives 29th March 1941 as Hammond

A Dispatch from Reuters 19th October 1940 as Mr. O'Malley - Captain of the Nova Scotian (uncredited)

Brigham Young 27th September 1940 as Second Man with California Gold News

Wildcat Bus 23rd August 1940 as Sweeney

The Return of Frank James 10th August 1940 as Sheriff

Flash Gordon Conquers the Universe 3rd March 1940 as Dr. Zarkov

Emergency Squad 5th January 1940 as Construction Supervisor at Elevator

The Night of Nights 1st December 1939 as Frank, the Bartender (uncredited)

Rulers of the Sea 8th November 1939 as Kelsey (Uncredited)

Torchy Blane... Playing with Dynamite 12th August 1939 as Inspector McTavish

Torchy Runs for Mayor 13th May 1939 as Captain McTavish

Union Pacific 5th May 1939 as Old Man (uncredited)

Torchy Blane in Chinatown 2nd February 1939 as Police Capt. McTavish

Next Time I Marry 9th December 1938 as Police Lieutenant (uncredited)

Torchy Gets Her Man 12th November 1938 as Police Captain McTavish (uncredited)

Mars Attacks the World 7th November 1938 as Dr. Alexis Zarkov

You Can't Take It with You 1st September 1938 as Mac (uncredited)

Torchy Blane in Panama 7th May 1938 as Captain McTavish

Over the Wall 2nd April 1938 as Duke Slattery - Policeman with Warrant

Flash Gordon's Trip to Mars 21st March 1938 as Dr. Zarkov

Rocket Ship 1st March 1938 as Dr. Hans Zarkov

The Ship That Died 19th February 1938 as Minor Role (uncredited)

Blondes at Work 5th February 1938 as Capt. McTavish

Mannequin 21st January 1938 as Police Sergeant at Jail (Uncredited)

The Adventurous Blonde 13th November 1937 as Captain McTavish

Ever Since Eve 15th July 1937 as Desk Sergeant (uncredited)

End of the Trail 10th October 1936 as Sheriff Anderson

The Texas Rangers 28th August 1936 as Captain Stafford

Flash Gordon 6th April 1936 as Dr. Hans Zarkov

Road Gang 28th March 1936 as Chaplain (uncredited)

The Prisoner of Shark Island 28th February 1936 as Mr. Holt

The Perfect Set-Up 1st February 1936 as Detective Hewitt (uncredited)

Black Gold 19th January 1936 as Dan O'Reilly

The Murder of Dr. Harrigan 11th January 1936 as Police Sergeant

The Pace That Kills 1st December 1935 as Mr. Farley

The Eagle's Brood 25th October 1935 as Mike

Men Without Names 29th June 1935 as Agent Joe

'G' Men 4th May 1935 as Police Chief at Lodge (uncredited)

Woman in the Dark 8th November 1934 as Prison Warden

A Burglar to the Rescue 7th September 1931 as The Burglar, Holtz aka Jack Dunning

Monsieur Beaucaire 11th August 1924 as Badger

Icebound 2nd March 1924 as Judge Bradford

The Bride's Play 22nd January 1922 as Sir John Mansfield

Boomerang Bill 15th January 1922 as Terrence O'Malley

Perjury 14th August 1921 as Phil Rourke

The Prisoner of Zenda 18th February 1913 as Detchard