|Born||Heidi Jo Mueller
January 29, 1982
|Children||1 (daughter Savanna June)|
Mueller joined Passions in mid-2003, the fourth actress to portray Kay (and also played Kay's ancestor Prudence Standish in a flashback) playing alongside Molly Stanton and Jesse Metcalfe. She continued in the role when the series switched to DirecTV on September 17,.
Juliet Mills, Mueller's costar on Passions, said of Mueller in 2007, "When she started, she had never acted and came from the reality show ... she was always very serious about the work and worked really hard to learn her lines. A soap opera is like boot camp. Now, she makes it all seem very spontaneous, and she's right there for you. It's really been lovely to see her grow as an actress." Passions costar Ben Masters added that Mueller "has the ability to make the words come out of her mouth so naturally; [dialogue] comes cascading out of her. I did a whole week with her where we had all these scenes, page after page after page; it was just wonderful. It's like she's got a perfect pitch as an actress." 
On June 20, 2013 she gave birth to her daughter, Savanna June, with professional football player DeMarco Murray. Heidi Mueller is still close friends with actor Jesse Metcalfe, her fellow Passions cast member.