Patrick Thomas O'Brien

Monk

(Brent Donovan)

CSI: Crime Scene Investigation

(Edward Cormier)

Gilmore Girls

(Brian's Dad)

The West Wing

(Hanson)

It's Always Sunny in Philadelphia

(Associate)

Married... with Children

(Bob Thompson)

Married... with Children

(Wally)

ER

(Carmichael)

Baywatch

Malcolm in the Middle

(Dad Driver)

Sabrina, the Teenage Witch

(Cupid)

Sabrina, the Teenage Witch

(Index Man)

Babylon 5

(Cart Owner)

Home Improvement

(Ink Ingram)

The Wonder Years

(Mr. Santa)

Family Matters

(Mr. Denton)

Night Court

(Ernie Carter)

Felicity

(Dan Waldron)