Clay O'Brien

Known For

Little House on the Prairie

Gunsmoke

Gunsmoke

Marcus Welby, M.D.

The Cowboys

Cahill: United States Marshal

The Apple Dumpling Gang

One Little Indian

All Movies (10)

• The Whiz Kid and the Carnival Caper1976
• Mackintosh and T.J.1975 · as T.J.
• The Apple Dumpling Gang1975 · as Bobby Bradley
• Hog Wild1974 · as Sterling Melborne
• The Whiz Kid and the Mystery at Riverton1974 · as Shoie
• Cahill: United States Marshal1973 · as Billy Joe Cahill
• One Little Indian1973 · as Mark
• Climb an Angry Mountain1972 · as Michael Cooper
• The Cowboys1972 · as Cowboy Hardy Fimps
• The Breaking of Boys and the Making of Men in 'The Cowboys'1972

All TV Shows (5)

• Little House on the Prairie1974 · as Henry Henderson
• The Cowboys1974 · as Weedy
• Marcus Welby, M.D.1969 · as Peter Graham
• Gunsmoke1955 · as Tuttle Kincaid
• Gunsmoke1955 · as Caleb Cunningham