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. Sean O'Bryan(1963년생, Louisville, Kentucky, USA) 는 배우로, 대표작으로 당신에게도 사랑이 다시 찾아올까요?, 생존: 러스트 크릭, The End가 있으며, 그 외에도 멘탈리스트, NCIS, CSI: 라스베가스, 크리미널 마인드, 쉐임리스, 덱스터, 본즈, 9-1-1, 못말리는 번디 가족, NCIS: 로스앤젤레스, JAG, 더 미들 등 다양한 작품에 출연했다. 특히 2026년에는 크라임 101에도 참여해서 활동중이다. (오뜨랑에서 실시간으로 번역된 한글 프로필도 확인할 수 있어요) 2026년 Steakout!에서 Sean 역을 맡았다. 2026년 크라임 101에서 Detective Fellner 역을 맡았다. 2026년 The End에 출연했다.