She may be best known for portraying Maggie Vera, one of the lead characters on The CW's reboot series Charmed (2018-2022), or her previous work as a child actress portraying Audrey, daughter of Sleeping Beauty, in the Disney Channel's Descendants franchise.

Jeffery's first major acting role was in the Cartoon Network television film Aliens in the House.

[4] She subsequently joined the cast of Fox's sci-fi drama series Wayward Pines playing the recurring role of Amy,[5][6] opposite Matt Dillon and Carla Gugino.

[7] She followed this up by playing the role of Audrey in the animated spinoff to the film Descendants: Wicked World.

[9][10][11] In January 2016, she began a lead role in Adi Hasak's American police procedural crime series Shades of Blue, playing Cristina Santos, the daughter of Jennifer Lopez's character;[12][13] the series was renewed for a second season.