Home People Jason O'Mara Jason O'Mara shows Jason O'Mara shows Jason O'Mara TV Shows (26) Marvel's Agents of S.H.I.E.L.D.: Slingshot (2016) As Jeffrey Mace, He was 44 years old Complications (2015) As Dr. John Ellison, He was 42 years old Sons of Liberty (2015) As George Washington, He was 42 years old The Man in the High Castle (2015) As Wyatt Price, He was 42 years old Marvel's Agents of S.H.I.E.L.D. (2013) As Jeffrey Mace / The Patriot / The Director, He was 41 years old Vegas (2012) As Deputy Jack Lamb, He was 40 years old Terra Nova (2011) As Jim Shannon, He was 39 years old Republic of Doyle (2010) As Seth Rankin, He was 37 years old The Good Wife (2009) As Damian Boyle, He was 37 years old Trust Me (2009) He was 36 years old Life on Mars (2008) As Det. Sam Tyler, He was 36 years old Men in Trees (2006) He was 34 years old In Justice (2006) As Charles Conti, He was 33 years old Criminal Minds (2005) As Mill Creek Killer, He was 33 years old The Closer (2005) He was 32 years old Grey's Anatomy (2005) He was 32 years old CSI: Miami (2002) He was 30 years old The Agency (2001) He was 29 years old Band of Brothers (2001) As 1st Lt. Thomas Meehan, He was 29 years old High Stakes (2001) He was 28 years old Monarch of the Glen (2000) He was 27 years old Berkeley Square (1998) As Ned Jones, He was 25 years old Playing the Field (1998) As Lee Quinn, He was 25 years old The Bill (1984) He was 12 years old Nature (1982) He was 10 years old Drift (1969)
