Karen Thomas is the wife and manager of "teen sensation" Justin Starr who appeared in "Age It Up". While at Shake It Up, Chicago!, she seems to dislike Gary Wilde. She is portrayed by Stephanie Lemelin.
- "I'm not just his manager, I'm also his wife."
- Karen: "What kind of water do you want?"
- Rocky: "The wet kind..."
- Karen: "Oh sweetie, they're all wet."