Acting
Frank Shannon was an Irish-born stage and screen performer. He had his film debut in The Prisoner of Zenda (1913). He is most fondly remembered as the brilliant Dr. Zarkov in the three Flash Gordon serials.
Highest rated appearances
as Old Man (uncredited)
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
