
Sean O'Bryan
Acting
Sean Michael O'Bryan (born September 10, 1963) is an American film and television actor. He co-starred with William Ragsdale on the short-lived series Brother's Keeper. Early television work includes guest roles on television series in Married... with Children, MacGyver, Northern Exposure, Cold Case, Diagnosis: Murder, Quantum Leap, Murder, She Wrote, Chicago Hope, Roswell, Roseanne, Criminal Minds, The King of Queens and Dexter. More recent television guest star credits include CSI, Bones, Melissa & Joey, Lie to Me, Hot In Cleveland, The Mentalist, Leverage, Glee, NCIS: LA, Superstore, and 9-1-1: Lone Star. He's had recurring roles on TV series including the sitcom Pig Sty, Six Feet Under, Abby, The Middle, and Love, Victor. He had a major recurring role as Bill Blackham on Persons Unknown. His film credits include Chaplin, Crimson Tide, Phenomenon, Exit to Eden, Out to Sea, Big Fat Liar, Deck the Halls, I'll Be Home For Christmas, Yes Man, Vantage Point, both Princess Diaries films, Playing for Keeps, Olympus Has Fallen, London Has Fallen, Table 58, Mother's Day, Searching, and Rust Creek.
Known For

NCIS
2003 · tv

The Mentalist
2008 · tv

Crime 101
2026 · movie

Shameless
2011 · tv

Bones
2005 · tv

Criminal Minds
2005 · tv

CSI: Crime Scene Investigation
2000 · tv

Dexter
2006 · tv

9-1-1
2018 · tv

JAG
1995 · tv

NCIS: Los Angeles
2009 · tv

Without a Trace
2002 · tv

Murder, She Wrote
1984 · tv

Beverly Hills, 90210
1990 · tv

The Middle
2009 · tv

Private Practice
2007 · tv

MacGyver
1985 · tv

Glee
2009 · tv

Ghost Whisperer
2005 · tv

Married... with Children
1987 · tv

Diagnosis: Murder
1993 · tv

Crossing Jordan
2001 · tv

The King of Queens
1998 · tv

Superstore
2015 · tv

Good Luck Charlie
2010 · tv

Quantum Leap
1989 · tv

9-1-1: Lone Star
2020 · tv

Las Vegas
2003 · tv

Felicity
1998 · tv

Chicago Hope
1994 · tv