Status: Alive
Birthplace: United States
Nationality: Flag of the United States American
Sibling(s): Carrie Mathison (half-sister)
Maggie Mathison (half-sister)
Other family: Ellen Mathison (mother)
Ruby Dunn (niece)
Josie Dunn (niece)
Frannie Mathison (niece)
Played by: Callan McAuliffe
Seasons: 4
Episodes: 1 appearance
First episode: "Long Time Coming"

Tim is the son of Ellen Mathison, the younger half-brother of Maggie Mathison and Carrie Mathison and the uncle of Ruby Dunn, Josie Dunn and Frannie Mathison. He is briefly mentioned and seen in Season 4, when he is trying to contact Carrie.