In the early days of Hunter King's career she appeared in movies like "A.I. Artificial Intelligence" and "Judy Moody and the Not Bummer Summer." However, she landed more TV roles in shows such as "Dexter," "Hannah Montana," and more. One of her most memorable roles is the character of Summer Newman on "The Young and The Restless," who she began playing in 2012. A few years later she began appearing as Clementine Hughes on the CBS comedy series "Life in Pieces," which co-starred Colin Hanks, James Brolin, Zoe Lister-Jones, Dianne Wiest, and Betsy Brandt. Hunter juggled her roles in "The Young and the Restless" and "Life In Pieces" at the same time and didn't miss a beat.

"I thought it was going to be a struggle and pretty difficult, but so far it's been great," King told Soap Opera Digest in 2016. "They've really worked out the schedules with each other. I think there's only been one time where I've had to go from one show to the other show. And over at 'Life in Pieces,' we film one episode a week, so there's not much dialogue for me to learn in a day, whereas on 'Y&R' there's a lot of it. It's balanced out pretty well." She added that comedy was much different than her dramatic daytime role.

However, King later left "The Young and the Restless" and began her career as one of Hallmark's brightest stars.