Movies (Acting Roles)
Sorted by Release DateThe Bride's Play
John B. O'Brien was
37 in The Bride's Play
as 'Marquis of Muckross'.
Sun, Jan 22 1922
A Daughter of the Law
John B. O'Brien was
36 in A Daughter of the Law
as 'Jim Garth'.
Tue, Nov 01 1921
A Western Redemption
John B. O'Brien was
26 in A Western Redemption
as 'Steve Wilson'.
Sat, Oct 21 1911
Spike Shannon's Last Fight
John B. O'Brien was
26 in Spike Shannon's Last Fight
as 'The Opponent'.
Sat, Aug 26 1911
The Corporation and the Ranch Girl
John B. O'Brien was
26 in The Corporation and the Ranch Girl
Sat, Jul 08 1911
Across the Plains
John B. O'Brien was
26 in Across the Plains
as 'The Cowboy's Friend'.
Tue, Apr 11 1911
Circle C Ranch's Wedding Present
John B. O'Brien was
25 in Circle C Ranch's Wedding Present
Sat, Dec 03 1910
Hank and Lank: As Sandwich Men
John B. O'Brien was
25 in Hank and Lank: As Sandwich Men
as 'The Cook'.
Tue, Nov 22 1910
A Flirty Affliction
John B. O'Brien was
25 in A Flirty Affliction
as 'Officer O'Rourke'.
Wed, Sep 21 1910
The Pony Express Rider
John B. O'Brien was
25 in The Pony Express Rider
as 'Pony O'Brien'.
Sat, Sep 17 1910
The Dumb Half Breed's Defense
John B. O'Brien was
25 in The Dumb Half Breed's Defense
Sat, Aug 20 1910
Under Western Skies
John B. O'Brien was
25 in Under Western Skies
as 'The Bartender'.
Sat, Aug 06 1910
The Ranchman's Feud
John B. O'Brien was
25 in The Ranchman's Feud
as 'Jack Matthews'.
Sat, Jun 11 1910
The Little Doctor of the Foothills
John B. O'Brien was
25 in The Little Doctor of the Foothills
Sat, May 21 1910
The Bad Man and the Preacher
John B. O'Brien was
25 in The Bad Man and the Preacher
as 'Snake Williams'.
Sat, Apr 16 1910
Method in His Madness
John B. O'Brien was
25 in Method in His Madness
as 'Man Outside Third Bar'.
Wed, Mar 16 1910
The Mexican's Faith
John B. O'Brien was
25 in The Mexican's Faith
as 'The Scoundrel'.
Sat, Feb 26 1910
The Outlaw's Sacrifice
John B. O'Brien was
25 in The Outlaw's Sacrifice
as 'The Rival'.
Sat, Jan 29 1910
The Ranchman's Rival
John B. O'Brien was
24 in The Ranchman's Rival
as 'Walter Milton'.
Sat, Dec 11 1909
TV Shows (Acting Roles)
Sorted by Release DateAges in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages