Clay O'Brien

Little House on the Prairie

1974★ 8.0

Marcus Welby, M.D.

1969★ 6.6

Gunsmoke

1955★ 6.7

Gunsmoke

1955★ 6.7

The Cowboys

1972★ 7.1

Cahill: United States Marshal

1973★ 6.1

The Apple Dumpling Gang

1975★ 6.6

The Cowboys

1974★ 8.0

One Little Indian

1973★ 6.3

Mackintosh and T.J.

1975★ 6.2

Hog Wild

1974★ 8.0

Climb an Angry Mountain

1972★ 10.0

The Whiz Kid and the Mystery at Riverton

1974★ 10.0

The Whiz Kid and the Carnival Caper

1976★ 7.5

The Breaking of Boys and the Making of Men in 'The Cowboys'

1972★ 0.0