From Wikipedia
John Paterson McGowan (February 24, 1880 – March 26, 1952) was a pioneering Hollywood actor and director and occasionally a screenwriter and producer. J. P. McGowan, as he was usually known, remains the only Australian to have been made a life member of the Screen Directors Guild (now Directors Guild of America).
Born in the then-bustling railway centre of Terowie in South Australia, McGowan grew up in Adelaide (Islington) and Sydney. He was a capable horseman and served in the Second Boer War with Montmorency's Scouts as a special dispatch rider.
McGowan directed and often acted in the first 33 episodes of Kalem's 1914 adventure film series, The Hazards of Helen, which eventually ran to 54 episodes, some still with McGowan's participation. While filming he began a relationship with Helen Holmes, the film's star, and the two married. They left Kalem to set up their own production company, Signal Films, which successfully made a series of railroad melodramas but lost out when their distributor (Mutual) failed. The collaboration ended when they divorced in 1925. There was an adopted daughter, Kaye.
McGowan successfully made the transition from silent film to talkies. While never a major star, in a busy career that spanned four decades he is credited with acting in 232 films—mostly strong roles like sheriff or villain—writing 26 screenplays and directing 242 productions. In 1932 he directed a young John Wayne in the 12-episode rail vs airplane serial The Hurricane Express for the independent Mascot Pictures. From 1938 to 1951, as Executive Secretary of the Screen Directors Guild, he fought to secure recognition for the director within the studio systems of the film and emerging television industry.
J.P. McGowan died in 1952 in Hollywood and was interred in the Forest Lawn Memorial Park Cemetery in Glendale, California.
Commissioner
The Arab Sheik
Undetermined Minor Role
Capt. Burke
Matson
Helmsman
Ed Dawson
Lockwood - the old one-armed Flagman
Valentine Hay
Federal Officer
Javert's Plainclothesman
Dolores' father
Slug Sagel
Inner Guard
Cop
Big Mike Carter, aka El Lobo, aka Texas Rand
Bit Part (uncredited)
Corry Kinchela
Rand - the Fireman
Jim Wales
Matt Stevens
Jeff Decker
Captain of The Hawk
Clansman
Scudder
Sergeant, Rescue Party
Caboose Passenger (uncredited)
Col. Stanton
Engineer
Ed Hicks
Taggart
Scotty McKee
Mr. Wallace - the Gamekeeper
Jailer
Police Sergeant (uncredited)
Brings note / Director
Jesse Wilks
The O’Rourke
Danglong
Lt. Greig
El Rio Sheriff
Ship Captain J.S. Robinson
U.S. Marshal Billy O'Neill
Dealer (uncredited)
Lord Kilhannack
Jim Twyler
Chief of Police (Uncredited)
Angus McGregor
Blacksmith Barstow
Shamus Foley
Brack Canfield
Inspector Winston - RCMP
Jim Howard
Seagrue
Jacques
Rance McGowan
Dave Morgan
Ship's Captain (uncredited)
Ship's Captain
Sheriff Jim Porter
Whispering Smith
Police Officer Murphy (uncredited)
Thomas Desmond
Bill Brogan
Sheik Mohammad
Motilla
Commander of the English troops
Various roles
Wise Man 1
Abner Whitcomb
Pete Hobart
Hash
Buck Peters
The Rancher
Sneezer Clark
Pepper Hardcastle
Freighter Captain
Benton
Blake
Livingston
Steve Redding
Earle Thorpe Sr.
Election Agent
Capt. Trent [Chs. 3-4]
Train Engineer
Whispering Smith
Spike
Mack
Old Man
Capt. Alvarez / Satan
Capt. Brandt / The Dragon
Maddox
Captain Ortwell
'Pepper' Baldwin
Capt. von Brinken
Anderson
Trow - of the Working Crew
Barker's Accomplice at Smelter Junction
Jack Norton
Capt. Morgan
Mammoth - Manning's Business Rival
Lafe Broderick
Rand - a Yeggman
Tiger McGuire
Webb Allison
Warren - Railroad Employee
Big Jim
Sheriff
Stephen Lawlor
Royal
John Foster
Hardress Cregan
Monte Black
Jerry McGuire
Kaintucky Bill - a Moonshiner
Dugan
Brute Kettle
Blake - a Lineman
Thomas - the Chief of the Gang
Policeman
Dan Haddon - a Cowboy
Brandt - a Defaulting Cashier