1962
as Car Salesman
1960
as Lt. Matt Carson
1960
as William Murrell
1960
as Self
1959
as Narrator (voice) (uncredited)
1959
as Karl, aka Dr. Acula
1957
as Sheriff
1957
as Nat Burdell
1957
as Capt. Foley
1956
as Tanner
1955
as Maj. Naylor
1955
as Uncle Ben Allen
1953
as Ross McLain
1953
as Mcquaid
1953
as Lt. Lacy
1952
as Lefty
1952
as Sam Mantell (as Kenne Duncun)
1951
as Henchman Indigo Hubbard
1951
as Sheriff Barnes
1951
1951
as Rance
1950
as Al Bartlett
1950
1950
as Henchman Dick Cantwell
1950
as Latigo (uncredited)
1950
as Michael's Henchman
1950
as Sgt. Gordon (as Kenneth Duncan)
1949
as Sheriff Winters
1949
as Tom Blaine
1949
as Cal Freeling
1949
as Morgan
1949
as Henchman Kirk
1949
as Steve Dallas
1949
as Joe Bardet
1949
as Frank Stevens
1949
as Nebraska
1949
as Bill Mayberry
1949
as Tim Reymond
1948
as Henchman Bender
1947
as Sergeant on Sidewalk (uncredited)
1947
as U.S. Customs Agent Lou Evers
1947
as Gambler (uncredited)
1946
as Crawley (uncredited)
1946
as Rustler talking with Jackson
1946
as Dr. Chambers [Chs. 1-2, 8]
1946
as Henchman Brannigan
1946
as Henchman Steve
1946
as Sam Priestly
1946
as (uncredited)
1946
as Geologist McBride
1946
as Henchman Hackett
1946
as Asa Morgan
1946
as Croupier
1946
as Henchman
1946
as Lafe
1946
as Dow
1946
as Henchman Pete McAvoy
1946
as Henchman
1946
as Henchman Jackson
1946
as Henchman Felton
1946
as Frank Hanlon
1946
as Ben Brady
1945
as Henchman Joe
1945
as Henchman (uncredited)
1945
as Lance - Henchman
1945
as Charles Mitchell
1945
as Man in Bar (uncredited)
1945
as Henchman Johnny Slade
1945
as Trigger Chandler
1945
as Servant
1945
as Al
1945
as Boarder
1945
as Brazos Kane
1945
as Gambler (uncredited)
1945
as Spade - Henchman
1945
as Murder Victim (Uncredited)
1945
as Sidney Brand
1944
as Whitey - Henchman
1944
as Dave Brewster
1944
as Al Herman
1944
as Arthur Wilkes - Secretary
1944
as Paul--Deresco Aide
1944
as Henchman Pete
1944
as Dr. Paul Dexter
1944
as Henchman Adams
1944
as Henchman Gentry [Chs. 7, 11]
1944
as Henchman Chuck
1944
as Henchman Ben Bannon
1944
as Henchman
1944
as Deputy Barrow
1944
as Construction Worker (uncredited)
1944
as Snyder
1943
as Henchman Turner
1943
as Henchman
1943
as Charlie (Uncredited)
1943
as Tom
1943
as Homesteader Clark
1943
as Sheriff Jeff
1943
as Fred
1943
as R. J. Cole (as Ken Duncan)
1943
as Adams
1943
as Tom Bancroft
1943
as Blackie
1943
as George Hooker
1943
as Hanley
1943
as Express Rider
1943
as Henchman Pete
1943
as Cowboy in Saloon
1942
as Henchman
1942
as Marshal Frank Hammond (as Kenneth Duncan)
1942
as Mulie
1942
as Henchman Ed Rance (as Kenneth Duncan)
1942
as Captain Anders (as Kenneth Duncan)
1942
as FBI Agent Tom
1942
as Henderson
1942
as Marvin
1942
as Henchman Durgan (as Ken Duncan)
1942
as Abu
1942
as Deputy Walt
1942
as Jess Fowler
1942
as Plug
1942
as Saloon Henchman
1941
as Joe
1941
as Henchman Pete Chandler
1941
as Jay Lynch
1941
as Nick
1941
as Henchman
1941
as Rod
1941
as Henchman Scotty
1941
as Ram Singh, Wentworth's Hindu Chauffeur
1941
as Barnett
1941
as Marshal Bob Day (as Ken Duncan)
1941
as Sergeant on Sidewalk with Sgt. Collins (uncredited)
1940
as Henchman Bragg
1940
as J.W. Carlton
1940
as Michael Bellamy
1940
as Bob Horner
1940
as Sheriff Dan Kirk (as Kenneth Duncan)
1940
as Captain Clay
1940
as Dave Hendricks
1940
as Henchman Two-Gun
1940
as Henchman Brownie
1940
as Car-Rental Clerk
1940
1940
as Fred Jones (as Kenneth Duncan)
1940
as Blaine - Henchman
1940
as Henchman Tom
1940
as Chet Adams
1940
as Bart Wallace
1940
as Bill Willis
1940
as Jack
1939
as Captain Jim Wallace
1939
as Ranch-Hand Larry
1939
as Henchman Johnson
1939
as Henchman
1939
as Speed Dennison
1939
as Lt. Lacy
1939
as Brady
1938
as The Martian Airfield Captain
1938
as Ram Singh
1938
as Henchman Crandall
1938
as Airdrome Captain
1938
as Garsatti
1937
as Henchman Leathers (as Kenneth Duncan)
1937
as Lorenzo
1936
as John Sommerset
1935
as Chick Williams
1934
as Blake Hardy (as Kenneth Duncan)
1932
as Office Worker (Uncredited)
1932
as Wedding Rehearsal Attendant (uncredited)
1931
as Curly Andrews
1927
as Clint Scollard