Ireland
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.
as Sweeney
as Police Chief at Lodge (uncredited)
1935
as Mac (uncredited)
1938
as Sweeney
1940
as Dr. Hayden
1943
as Dr. Hans Zarkov
1936
as Judge Bradford
1924
as Construction Supervisor at Elevator
1940
as Sheriff
1940
as Prof. Davidson (uncredited)
1943
as Dr. Hans Zarkov
1938
as Mr. O'Malley - Captain of the Nova Scotian (uncredited)
1940
as Train Station Gateman (Uncredited)
1946
as Dr. Zarkov
1966
as Dr. Zarkov
1966
as Dr. Alexis Zarkov
1966
as Dr. Zarkov
1966
as Dr. Hans Zarkov (archive footage)
1966
1949
as Train Station Gateman (Uncredited)
1946
as Prof. Davidson (uncredited)
1943
as Dr. Hayden
1943
as Police Commissioner
1942
as Senator (uncredited)
1942
as McDowell
1941
as Hammond
1941
as Mr. O'Malley - Captain of the Nova Scotian (uncredited)
1940
as Second Man with California Gold News
1940
as Sweeney
1940
as Sheriff
1940
as Dr. Zarkov
1940
as Construction Supervisor at Elevator
1940
as Frank, the Bartender (uncredited)
1939
as Kelsey (Uncredited)
1939
as Inspector McTavish
1939
as Captain McTavish
1939
as Old Man (uncredited)
1939
as Police Capt. McTavish
1939