Child & Teen actor Billy O'Brien. Brother of child actor Gene O'Brien.
Profile photo of older guy with dark hair is NOT Billy O'Brien. His name might be the same, but it is not the correct person. That photo should be deleted.
8/28/1944 Culver City Evening Star News: "Captain William O'Brien Lost in the Pacific" news article states that Captain William S. O'Brien Culver City Ace in the South Pacific theatre of war has been missing in action si...
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Say It with Babies
As Child (uncredited)
Bouncing Babies
As (unconfirmed)
Next Of Kin
As Spuds
The Valiant
As Boy (uncredited)
Pilgrimage
Say It with Songs
As Schoolboy
West of the Divide
As Spuds
The Power and the Glory
As Tom as a Boy
Human Cargo
As Boy
Maid of Salem
As Young Jasper (Uncredited)
Boxing Gloves
As Billy
The Christmas Party
As Party Guest served by Marion Davies
Dangerous Crossroads
As Jackie's Friend
Stage Mother
As Student
This Side of Heaven
As Messenger Boy
No Greater Glory
As Paul Street Boy