Lauren was born on January 7th, 1982 in Philadelphia, Pennsylvania, but grew up in Cherry Hill Township, New Jersey. While still in her childhood, she moved to the United Kingdom. She graduated from the University of Winchester/King Alfred's College, where she studied drama and English literature before touring with the University's theater company that she co-founded. Lauren then had to split her time between working in London and Los Angeles, working on films as well as non-commercial projects.
She is also known for her role as Bela Talbot in Supernatural and Rose in The Vampire Diaries. She appeared in six episodes of Supernatural's third season. She was written out of the show since her character was not popular, even though the show tried to keep her on. She also portrayed Vivian Volkoff in Chuck. In 2016, she appeared as the main character Greta in the horror film The Boy.
Other appearances include Modern Family, CSI: NY, Cold Case, Life, The Bold and the Beautiful, and Heavenly. Eventually, she was cast as Maggie Greene (later Rhee) in the second season of The Walking Dead. By the third season, she became a main character. Other films include Reach Me and Batman V Superman: Dawn of Justice. In 2018, she also starred in the action film Mile 22 opposite Mark Wahlberg.
- Sister Beatrice in Casanova
- Charlotte Higginson in Van Wilder: The Rise of Taj
- Bela Talbot in Supernatural
- Joanna Clay in Valentine
- Jackie Rolder in Life
- Rachel Malone '86 in Cold Case
- Meredith Muir in CSI: NYC
- Rose in The Vampire Diaries
- September Jones in Death Race 2
- Vivian McArthur Volfkoff in Chuck
- Maggie Rhee in The Walking Dead
- Lulu Pratt in Children Hospital
- Avery Jordan in Law & Order: Special Victim Unit
- Juliana Calderon in Archer
- Kate in Reach Me
- Greta Evans in The Boy
- Martha Wayne in Batman v Superman: Dawn of Justice
- Ashley in The Mindey Project
- Leila Steinberg in All Eyez on Me
- Alice Kerr in Mile 22
- Before pursuing a career in acting, Cohan wanted to be a child psychologist.
- Cohan lived next to a pet cemetery as a child.
- Cohan plays the piano.
- Her stunt double on the show is Rachael Evelyn.
- Cohan did competitive swimming as a child.
- Cohan worked as a waitress at The Cat & The Fiddle Restaurant & Pub.
- Cohan also played CIA-Agent Alice Kerr in the 2018 film Mile 22.
- Both Cohan and Tyler James Williams starred in AMC's The Walking Dead.