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.
Torchy Blane in Panama
1938
Torchy Blane in Chinatown
1939
Union Pacific
1939
Flash Gordon
1936
Batman
1943
You Can't Take It with You
1938
Next Time I Marry
1938
The Prisoner of Shark Island
1936
The Return of Frank James
1940
The Secret Code
1942
Torchy Runs for Mayor
1939
Boomerang Bill
1922
Woman in the Dark
1934
Flash Gordon Conquers the Universe
1940
The Murder of Dr. Harrigan
1936
Wildcat Bus
1940
Flash Gordon: The Deadly Ray From Mars
1966
The Perfect Set-Up
1936
Emergency Squad
1940
Torchy Blane... Playing with Dynamite
1939
Rocket Ship
1938
A Dispatch from Reuters
1940
Flash Gordon's Trip to Mars
1938
Ever Since Eve
1937
Federal Fugitives
1941
Spaceship to the Unknown
1966
Purple Death from Outer Space
1966
The Pace That Kills
1935
Mars Attacks the World
1938
The Texas Rangers
1936
'G' Men
1935
Road Gang
1936
The Phantom
1943
The Phantom
1943
Ten Gentlemen from West Point
1942
Over the Wall
1938
Brigham Young
1940
Crack-Up
1946
Icebound
1924
Rulers of the Sea
1939