In 2010, Rebecca Dalton made her on-screen appearance in an episode of the Canadian-American TV series Unnatural History in the role of Sally. In the same year she was also cast in the Canadian TV movie My Babysitter's a Vampire in the role of Della ('Popcorn Lady'), and she’s been busy ever since, both in television and film.
In 2013, Dalton was cast as Stephanie Lyons, one of the leading roles in the Canadian TV series Spun Out and then in 2015, she was cast to replace Ashley Leggat in the recurring role of Tara for season two of Hallmark Channel's series Good Witch, a role she reprised in subsequent seasons. In the same year she was also cast in the role of Katie Littleton in the 2016 TV movie "Total Frat Party."
Dalton has also appeared in a number of Canadian TV movies, including "RockyRoad" (2014), "A Perfect Christmas" (2016), "Christmas Wedding Planner" (2017), and in 2020, "The Santa Squad."