About
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...
Known for
NCISSeries • 2003
The MentalistSeries • 2008
Criminal MindsSeries • 2005
CSI: Crime Scene InvestigationSeries • 2000
BonesSeries • 2005
ShamelessSeries • 2011
NCIS: Los AngelesSeries • 2009
DexterSeries • 2006
9-1-1Series • 2018
JAGSeries • 1995
Diagnosis: MurderSeries • 1993
Beverly Hills, 90210Series • 1990
Married... with ChildrenSeries • 1987
MacGyverSeries • 1985
Without a TraceSeries • 2002
The MiddleSeries • 2009
Murder, She WroteSeries • 1984
The King of QueensSeries • 1998
GleeSeries • 2009
Ghost WhispererSeries • 2005
Quantum LeapSeries • 1989
Chicago HopeSeries • 1994
Crossing JordanSeries • 2001
Las VegasSeries • 2003