In September 2013, Angelson was added to the cast of the Showtime series House of Lies as Caitlin Hobart. In 2014, Angelson replaced Mamie Gummer to play the role of Det. Nicole Gravely in Backstrom. In 2016, she starred in Amazon Video original series, Good Girls Revolt, however the series was cancelled by Amazon after one season. She also played Nina in the Tony Award for Best Play winner at 67th Tony Awards, Vanya and Sonia and Masha and Spike. in which Ben Brantley called her "exquisite."[1]
