Abigail Spencer made her screen debut in the American television soap opera ‘All My Children’ in 1999. She played the role of ‘Rebecca 'Becca' Tyree,’ which earned her the ‘Soap Opera Digest Award,’ and remained a part of the show until 2000. She next starred as ‘Melissa’ in the 2001 crime horror film ‘Campfire Stories’ directed by Bob Cea, Andrzej Krakowski, and Jeff Mazzola. The film also marked the silver screen debut of Spencer. She continued to star in films like ‘Graduation Night’ (2003), ‘Fathers and Sons’ (2005), ‘A Coat of Snow’ (2005), ‘Jekyll’ (2007), ‘In My Sleep’ (2010), and ‘Cowboys & Aliens’ (2011). In 2011, she grabbed the role of ‘Dana 'Scottie' Scott’ in the American legal drama television series ‘Suits’ created by Aaron Korsh. She starred in 15 episodes and remained a part of the show until it went off-air in 2019. She was next seen in television series like ‘Childrens Hospital’ (2012), ‘Burning Love’ (2012-2013), and ‘NTSF:SD:SUV’ (2013). In 2013, she joined the cast of the American television drama series ‘Rectify.’ She played the role of ‘Amantha Holden’ for which she received the ‘Critics' Choice Television Award’ and the ‘Satellite Award.’ The series ran for 4 seasons and aired its final episode in 2016.
She next starred in television series like ‘True Detective’ (2015), ‘Comedy Bang! Bang!’ (2016), ‘Timeless’ (2016-2018), ‘The Late Late Show with James Corden’ (2017), ‘Wayne’ (2019), and ‘Reprisal’ (2019). She was last seen playing the role of ‘Misha’ in the 2021 American legal comedy-drama television series ‘Rebel’ created by Krista Vernoff. The series was canceled after one season.