McDorman starred in the
Fox sitcom
Quintuplets from 2004 to 2005, and later guest-starred on
House,
CSI: Miami and
Cold Case. He made his film debut in the 2005 thriller
Echoes of Innocence, and later has appeared in
Aquamarine,
Bring It On: All or Nothing and
Live Free or Die Hard. From 2007 to 2011, McDorman starred as Evan Chambers in the
ABC Family teen drama series
Greek. He also played the lead role in the 2011
Lifetime movie
The Craigslist Killer. In 2012, McDorman played the male lead role opposite
Laura Prepon in the short-lived
NBC sitcom
Are You There, Chelsea?. He later joined the cast of
Showtime comedy-drama,
Shameless as Mike Pratt. He starred in the film
See You in Valhalla opposite
Sarah Hyland, and in 2014 co-starred in
Clint Eastwood's film
American Sniper. Also in 2014, McDorman was cast in the male lead role opposite
Lio Tipton in the
ABC romantic comedy series,
Manhattan Love Story. In 2015, he starred in CBS's
Limitless as Brian Finch, a young man who uses a mysterious drug called "NZT" to enhance his intelligence to help the
FBI solve cases. The TV series continued the story of
the motion picture of the same name. McDorman went on to play Mr. Bruno in the Academy Award nominated film
Lady Bird in 2017. Additionally he was seen as Nelson Gardner on the highly acclaimed episode of HBO's
Watchmen entitled "
This Extraordinary Being". His main role in 2023's
Mrs. Davis reunited him with
Watchmen creator
Damon Lindelof. ==Filmography==