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 Monk (2004) (TV Series)-Brent Donovan (1 episode, 2004) Brent Donovan (1 episode, 2004) See fewer Mr. Monk and the Employee of the Month (Aug 6, 2004) Season 3, Episode 7-Brent Donovan Brent Donovan See fewer |
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 Dragnet (2003) (TV Series)-Janitor (1 episode, 2003) Janitor (1 episode, 2003) See fewer The Big Ruckus (Feb 9, 2003) Season 1, Episode 2-Janitor Janitor See fewer |
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 ER (2003) (TV Series)-Carmichael (1 episode, 2003) Carmichael (1 episode, 2003) See fewer No Good Deed Goes Unpunished (Jan 30, 2003) Season 9, Episode 13-Carmichael Carmichael See fewer |
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 Push, Nevada (2002) (TV Series)- Actor (1 episode, 2002) Actor (1 episode, 2002) See fewer···---··· (Oct 24, 2002) Season 1, Episode 6- Actor (as Patrick Thomas O'Brein) Actor (as Patrick Thomas O'Brein) See fewer |
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 CSI: Crime Scene Investigation (2002) (TV Series)-Edward Cormier (1 episode, 2002) Edward Cormier (1 episode, 2002) See fewer Burden of Proof (Feb 7, 2002) Season 2, Episode 15-Edward Cormier Edward Cormier See fewer |
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 For Your Love (2001) (TV Series)-Mr. Spencer (1 episode, 2001) Mr. Spencer (1 episode, 2001) See fewerThe Model Client (Apr 22, 2001) Season 4, Episode 9-Mr. Spencer (as Patrick T. O'Brien) Mr. Spencer (as Patrick T. O'Brien) See fewer |
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 Pensacola: Wings of Gold (1998) (TV Series)- Actor (1 episode, 1998) Actor (1 episode, 1998) See fewerBoom (Oct 19, 1998) Season 2, Episode 7- Actor (as Patrick O'Brien) Actor (as Patrick O'Brien) See fewer |
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 Silk Stalkings (1998) (TV Series)-Mr. Petrie (1 episode, 1998) Mr. Petrie (1 episode, 1998) See fewerHidden Agenda (Aug 30, 1998) Season 8, Episode 6-Mr. Petrie (as Patrick T. O'Brien) Mr. Petrie (as Patrick T. O'Brien) See fewer |
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 The Wayans Bros. (1998) (TV Series)-Mr. Webster (1 episode, 1998) Mr. Webster (1 episode, 1998) See fewerAll in the Family Feud (Jan 14, 1998) Season 4, Episode 11-Mr. Webster (as Patrick O'Brien) Mr. Webster (as Patrick O'Brien) See fewer |
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 Working (1997) (TV Series)-Carl (1 episode, 1997) Carl (1 episode, 1997) See fewer Top O' the World Ma (Dec 10, 1997) Season 1, Episode 8-Carl Carl See fewer |
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 Family Matters (1997) (TV Series)-Mr. Denton (1 episode, 1997) Mr. Denton (1 episode, 1997) See fewer A Pain in Harassment (Nov 14, 1997) Season 9, Episode 9-Mr. Denton Mr. Denton See fewer |
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 The Naked Truth (1997) (TV Series)-Lab Man (1 episode, 1997) Lab Man (1 episode, 1997) See fewer The Birds (Mar 21, 1997) Season 2, Episode 9-Lab Man Lab Man See fewer |
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 Night Stand (1995–1996) (TV Series)-Neil (2 episodes, 1995) Neil (2 episodes, 1995) See fewer Clip Show (1996) Season 1, Episode 52-Neil Neil See fewerCrime Show (1995) Season 1, Episode 3-Neil (as Patrick T. O'Brien) Neil (as Patrick T. O'Brien) See fewer |
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 The Boys Are Back (1994) (TV Series)-Teacher (1 episode, 1994) Teacher (1 episode, 1994) See fewer The Good, the Bad and the Hansens (Oct 19, 1994) Season 1, Episode 6-Teacher Teacher See fewer |
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 Babylon 5 (1994) (TV Series)-Cart Owner (1 episode, 1994) Cart Owner (1 episode, 1994) See fewerLegacies (Jul 20, 1994) Season 1, Episode 17-Cart Owner (as Patrick O'Brien) Cart Owner (as Patrick O'Brien) See fewer |
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 Hart to Hart: Home Is Where the Hart Is (1994) (TV Movie)-Desk Clerk Desk Clerk See fewer |
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 Home Improvement (1992) (TV Series)-Eugene 'Ink' Ingram (1 episode, 1992) Eugene 'Ink' Ingram (1 episode, 1992) See fewerJill's Birthday (Feb 4, 1992) Season 1, Episode 16-Eugene 'Ink' Ingram (as Patrick T. O'Brien) Eugene 'Ink' Ingram (as Patrick T. O'Brien) See fewer |
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 Marilyn and Me (1991) (TV Movie)-Casting Director (as Patrick O'Brien) Casting Director (as Patrick O'Brien) See fewer |
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 Equal Justice (1991) (TV Series)-Thornell Katz (1 episode, 1991) Thornell Katz (1 episode, 1991) See fewer Without Prejudice (Apr 10, 1991) Season 2, Episode 10-Thornell Katz Thornell Katz See fewer |
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 Babes (1991) (TV Series)-Rusty (1 episode, 1991) Rusty (1 episode, 1991) See fewerBabes in Boyland (Feb 14, 1991) Season 1, Episode 16-Rusty (as Patrick T. O'Brien) Rusty (as Patrick T. O'Brien) See fewer |
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 The Great Los Angeles Earthquake (1990) (TV Movie)-Jim Allen Jim Allen See fewer |
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 Dragnet (1990) (TV Series)-Wally Tilson (1 episode, 1990) Wally Tilson (1 episode, 1990) See fewer Living Victim (Oct 8, 1990) Season 1, Episode 2-Wally Tilson Wally Tilson See fewer |
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 Camp Cucamonga (1990) (TV Movie)-Virgil Virgil See fewer |
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 Parker Lewis Can't Lose (1990) (TV Series)-Mr. Kubiac (1 episode, 1990) Mr. Kubiac (1 episode, 1990) See fewerOperation Kubiac (Sep 9, 1990) Season 1, Episode 2-Mr. Kubiac (as Patrick T. O'Brien) Mr. Kubiac (as Patrick T. O'Brien) See fewer |
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 1st & Ten (1990) (TV Series)-Anthony Smalss (1 episode, 1990) Anthony Smalss (1 episode, 1990) See fewer Earn This One for Ernie (Jan 17, 1990) Season 5, Episode 13-Anthony Smalss Anthony Smalss See fewer |
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 Have Faith (1989) (TV Series)-Mr. Mahaffey (1 episode, 1989) Mr. Mahaffey (1 episode, 1989) See fewerBingo (May 16, 1989) Season 1, Episode 4-Mr. Mahaffey Mr. Mahaffey See fewer |
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 Hooperman (1987) (TV Series)-Man in Tie (1 episode, 1987) Man in Tie (1 episode, 1987) See fewer Deck the Cell with Bars of Folly (Dec 23, 1987) Season 1, Episode 11-Man in Tie (as Patrick T. O'Brien) Man in Tie (as Patrick T. O'Brien) See fewer |
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 Jake and the Fatman (1987) (TV Series)-Ritchie (1 episode, 1987) Ritchie (1 episode, 1987) See fewerBody and Soul (Nov 3, 1987) Season 1, Episode 7-Ritchie (as Patrick T. O'Brien) Ritchie (as Patrick T. O'Brien) See fewer |
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 Easy Street (1986) (TV Series)-Don Martin (1 episode, 1986) Don Martin (1 episode, 1986) See fewer Demon Child '86 (Dec 7, 1986) Season 1, Episode 12-Don Martin Don Martin See fewer |
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 Jennifer Slept Here (1983) (TV Series)-Minister (1 episode, 1983) Minister (1 episode, 1983) See fewerTrading Faces (Dec 2, 1983) Season 1, Episode 7-Minister (as Patrick T. O'Brien) Minister (as Patrick T. O'Brien) See fewer |
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 Kenny Rogers as The Gambler: The Adventure Continues (1983) (TV Movie)-Jenkins (as Patrick O'Brien) Jenkins (as Patrick O'Brien) See fewer |
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