Known for 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.
1939
as Old Man (uncredited)
1935
as Police Chief at Lodge (uncredited)
1938
as Mac (uncredited)
1940
as Second Man with California Gold News
1936
as Chaplain (uncredited)
1943
as Dr. Hayden
1940
as Sheriff
1938
as Police Captain McTavish (uncredited)
1936
as Dr. Hans Zarkov
1938
as Police Sergeant at Jail (Uncredited)
1940
as Mr. O'Malley - Captain of the Nova Scotian (uncredited)
1946
as Train Station Gateman (Uncredited)
1949
1939
as Police Capt. McTavish
1938
as Capt. McTavish
1939
as Inspector McTavish
1936
as Police Sergeant
1942
as Senator (uncredited)
1934
as Prison Warden
1938
as Duke Slattery - Policeman with Warrant