Home People Keir O'Donnell Keir O'Donnell shows Keir O'Donnell shows Keir O'Donnell TV Shows (15) Project Blue Book (2019) As Evan Blake, He was 40 years old Sun Records (2017) As Dewey Phillips, He was 38 years old Legion (2017) As Daniel, He was 38 years old Fargo (2014) As Ben Schmidt, He was 35 years old My Generation (2010) As Kenneth Finley, He was 31 years old Rizzoli & Isles (2010) As Craig Johnson, He was 31 years old FlashForward (2009) As Ned Ned, He was 30 years old Sons of Anarchy (2008) He was 29 years old Californication (2007) As Beckett Fetch, He was 28 years old It's a Mall World (2007) As Dennis, He was 28 years old It's Always Sunny in Philadelphia (2005) As Jan, He was 26 years old The Closer (2005) As Gerald Curtis, He was 26 years old Lost (2004) As Thomas, He was 25 years old 8 Simple Rules... for Dating My Teenage Daughter (2002) As Derek, He was 23 years old CSI: Crime Scene Investigation (2000) As Ken Richmond, He was 21 years old