Biography

John Dennis Johnston (born May 14, 1950) is an American film and television actor.

Filmography

View Supernatural
Supernatural

Supernatural

2005•Series•
8.3
View ER
ER

ER

1994•Series•
7.8
View Knots Landing
Knots Landing

Knots Landing

1979•Series•
6.8
View Murder, She Wrote
Murder, She Wrote

Murder, She Wrote

1984•Series•
7.5
View Without a Trace
Without a Trace

Without a Trace

2002•Series•
7.2
View MacGyver
MacGyver

MacGyver

1985•Series•
7.7
View The A-Team
The A-Team

The A-Team

1983•Series•
7.5
View Married... with Children
Married... with Children

Married... with Children

1987•Series•
7.7
View St. Elsewhere
St. Elsewhere

St. Elsewhere

1982•Series•
5.6
View Charlie's Angels
Charlie's Angels

Charlie's Angels

1976•Series•
6.7
View Dark Angel
Dark Angel

Dark Angel

2000•Series•
7.5
View Millennium
Millennium

Millennium

1996•Series•
7.7