Film

In 2006, after her film debut in Casanova (2005) as Sister Beatrice, Cohan starred in the sequel to Van Wilder (2002), Van Wilder: The Rise of Taj, as Charlotte Higginson. Her next role was in the 2008 film Float. In February 2010, she was cast in Death Race 2^[14] and was the lead in the 2016 supernatural-horror The Boy.^[15] Also in 2016, she appeared as Martha Wayne, Batman's deceased mother, in Batman v Superman: Dawn of Justice and played Leila Steinberg in the 2017 biographical drama All Eyez on Me.

Television

In 2007, Cohan garnered her first major supporting role, which was also described as a season lead, when she was cast for season three of Supernatural as Bela Talbot, a thief who procures valuable supernatural objects and sells them to rich and powerful people in the supernatural world. The character appeared in six episodes of the series. Her final appearance was in the penultimate episode of season three titled "Time Is on My Side".^[16]

Cohan played the recurring character Rose, a 560-year-old vampire, in The Vampire Diaries. In 2011, she joined the television series Chuck in a recurring role playing Vivian McArthur Volkoff, a "charming, sophisticated socialite" from the United Kingdom, and the daughter of primary villain, Alexei Volkoff. She also guest starred on shows such as Archer, Cold Case, CSI: NY, Life, and Modern Family.

Cohan starred in a pilot for The CW called Heavenly (2011) in which she played the lead character, Lily, an attorney who teams up with an angel; however, it was not picked up as a series.^[17]

In April 2011, Cohan was cast in her most notable role as Maggie Greene (later Maggie Rhee)^[18] on The Walking Dead,^[19] an AMC post-apocalyptic horror television series based on the comic book series of the same name. She first appeared in season two as a recurring character, but she became a series regular at the start of season three.^[20] The drama was the highest-rated series in cable television history in 2015.^[21] At the conclusion of the eighth season of The Walking Dead, Cohan completed her contract obligations as a series regular. It was later reported Cohan had not reached an agreement to sign on for season nine as a main cast member due to a pay dispute, as she demanded an increased salary closer to the salaries of her male co-stars Andrew Lincoln and Norman Reedus. AMC refused and Cohan began making herself available for TV pilots.^[22] Cohan eventually reached an agreement to appear in five episodes in the first half of season nine of The Walking Dead^[23] and departed the series in 2018.^[24]

In early 2018, in the midst of her contract negotiations with AMC regarding The Walking Dead, Cohan was cast as CIA operative Francesca "Frankie" Trowbridge in the ABC action comedy-drama Whiskey Cavalier.^[25] Whiskey Cavalier was picked up to series in May 2018 and premiered on February 24, 2019.^[26] ABC did not renew the series for a second season.^[27] In October 2019, it was reported that Cohan would return to The Walking Dead as a series regular in the series' eleventh and final season.^[28] Following the conclusion of the series, Cohan starred alongside Jeffrey Dean Morgan in the spinoff series The Walking Dead: Dead City. Both Cohan and Morgan also serve as executive producers.^[29] In July 2023, the series was renewed for a second season.^[30]

Film

Television

Video games