John Allen "Jake" McDorman IV (born July 8, 1986) is an American actor, starring in the leading role of Brian Finch in the CBS weekly television drama, Limitless, which debuted in September of 2015. McDorman also appeared as Evan Chambers in the ABC Family teen drama series Greek (2007–11). He also starred in the NBC short-lived sitcom Are You There, Chelsea?, and played the role of Mike Pratt in the Showtime comedy-drama Shameless. In 2014, McDorman starred in the ABC romantic comedy/drama Manhattan Love Story.