Frank Shannon

Peril from the Planet Mongo

as Dr. Zarkov

Flash Gordon: The Deadly Ray From Mars

as Dr. Alexis Zarkov

Purple Death from Outer Space

as Dr. Zarkov

Spaceship to the Unknown

as Dr. Hans Zarkov (archive footage)

A Dangerous Profession

Crack-Up

as Train Station Gateman (Uncredited)

The Phantom

as Prof. Davidson (uncredited)

The Phantom

as Professor Davidson

Batman

as Dr. Hayden

The Secret Code

as Police Commissioner

Ten Gentlemen from West Point

as Senator (uncredited)

Rawhide Rangers

as McDowell

Federal Fugitives

as Hammond

A Dispatch from Reuters

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

Brigham Young

as Second Man with California Gold News

Wildcat Bus

as Sweeney

The Return of Frank James

as Sheriff

Flash Gordon Conquers the Universe

as Dr. Zarkov

Emergency Squad

as Construction Supervisor at Elevator

The Night of Nights

as Frank, the Bartender (uncredited)

Rulers of the Sea

as Kelsey (Uncredited)

Torchy Blane... Playing with Dynamite

as Inspector McTavish

Torchy Runs for Mayor

as Captain McTavish

Union Pacific

as Old Man (uncredited)

Torchy Blane in Chinatown

as Police Capt. McTavish

Next Time I Marry

as Police Lieutenant (uncredited)

Torchy Gets Her Man

as Police Captain McTavish (uncredited)

Mars Attacks the World

as Dr. Alexis Zarkov

You Can't Take It with You

as Mac (uncredited)

Torchy Blane in Panama

as Captain McTavish

Over the Wall

as Duke Slattery - Policeman with Warrant

Flash Gordon's Trip to Mars

as Dr. Zarkov

Rocket Ship

as Dr. Hans Zarkov

The Ship That Died

as Minor Role (uncredited)

Blondes at Work

as Capt. McTavish

Mannequin

as Police Sergeant at Jail (Uncredited)

The Adventurous Blonde

as Captain McTavish

Ever Since Eve

as Desk Sergeant (uncredited)

End of the Trail

as Sheriff Anderson

The Texas Rangers

as Captain Stafford

Flash Gordon

as Dr. Hans Zarkov

Road Gang

as Chaplain (uncredited)

The Prisoner of Shark Island

as Mr. Holt

The Perfect Set-Up

as Detective Hewitt (uncredited)

Black Gold

as Dan O'Reilly

The Murder of Dr. Harrigan

as Police Sergeant

The Pace That Kills

as Mr. Farley

The Eagle's Brood

as Mike

Men Without Names

as Agent Joe

'G' Men

as Police Chief at Lodge (uncredited)

Woman in the Dark

as Prison Warden

A Burglar to the Rescue

as The Burglar, Holtz aka Jack Dunning

Monsieur Beaucaire

as Badger

Icebound

as Judge Bradford

The Bride's Play

as Sir John Mansfield

Boomerang Bill

as Terrence O'Malley

Perjury

as Phil Rourke

The Prisoner of Zenda

as Detchard