Previously, she guest starred on the WB/CW's Smallville as Zatanna Zatara, a DC Comics-inspired recurring character who is an actual magician.

[3] Her father, Scott Swan, is a Canadian theatre director and actor who runs an acting studio.

[3] Her first acting job was in 1989, a small role in the Ted Danson and Isabella Rossellini film Cousins, when she was just five years old.

[3] One of her early on screen appearances as an adult was in Theory of a Deadman's music video for their single "So Happy", which was released in April 2008.

[4] She also had the role of the Roman goddess, Veritas, in the season six episode "You Can't Handle the Truth" of Supernatural, another CW series, in 2010.

After four seasons, in June 2022, it was announced that Swan would be leaving the show, and would be potentially replaced by a new actress or actor with a new main character as the lead role.