Jeffrey Thomas Donovan is an American actor. He played Michael Westen in the television series Burn Notice, and appeared in films such as Hitch, Believe in Me, Changeling, and Come Early Morning. He played Robert F. Kennedy in Clint Eastwood's J. Edgar (2011) and his brother John F. Kennedy in Rob Reiner's LBJ (2016). He had a recurring role in the second season of the TV series Fargo (2015). In 2022, he starred as NYPD Detective Frank Cosgrove on the NBC crime drama reboot Law & Order.