|Family:|| Camden McCallum, Sr. (father)|
Camden McCallum, Jr. (brother)
In the Pilot, Shawn Spencer attempts to hit on Katarina while investigating the case of her missing, and later deceased, brother. He proves to be unsuccessful as she is interested in someone else. Her and Shawn's short-lived relationship comes to a close when he tails her to a thrift shop, after believing that she was carrying ransom money. However, she was not, and after he accuses her of wrongdoing and crimes, she shuns him. He later uncovers that it was her father that murdered her brother.