She is of Filipino and Chinese descent, and is known for Alex Cross, A Cinderella Story: Once Upon a Song, and My Sassy Girl. Wanlim first appeared as Rachael in the television series All My Children in. She is also known for her appearence as Pauletta Cho in 3 episodes of Gossip Girl, and her recurring role in Scoundrels as Patty Hong within 5 episodes. Wanlim plays as a comedian in many stage roles. Jessalyn can currently be seen playing the role of Evie Cho on the Space TV series Orphan Black.