Cast & creator
Clay O'Brien
Best known for Little House on the Prairie, Marcus Welby, M.D., Gunsmoke
Movies
10
film credits
Series
5
television credits
Career
15
1955–1976 · acting roles
Credit score
7.4
average across scored titles
Signature credits
Known for
Across film & television
Filmography (15)
Showing 15 of 15 credits
Series
★ 8.0
Little House on the Prairie
Henry Henderson
1974
Series
★ 6.6
Marcus Welby, M.D.
Peter Graham
1969
Series
★ 6.7
Gunsmoke
Tuttle Kincaid
1955Series
★ 6.7
Gunsmoke
Caleb Cunningham
1955
Movie
★ 7.1
The Cowboys
Cowboy Hardy Fimps
1972T
Series
★ 8.0
The Cowboys
Weedy
1974
Movie
★ 6.6
The Apple Dumpling Gang
Bobby Bradley
1975
Movie
★ 6.1
Cahill: United States Marshal
Billy Joe Cahill
1973
Movie
★ 6.3
One Little Indian
Mark
1973
Movie
★ 6.2
Mackintosh and T.J.
T.J.
1975
Movie
★ 8.0
Hog Wild
Sterling Melborne
1974T
Movie
★ 10.0
The Whiz Kid and the Mystery at Riverton
Shoie
1974
Movie
★ 10.0
Climb an Angry Mountain
Michael Cooper
1972
Movie
★ 7.5
The Whiz Kid and the Carnival Caper
1976T
Movie