Claudia Dawson is Caleb's biological mother. She lives in Montecito, California.
When Caleb was five years old, his mother Claudia left him in his aunt's house with a baby sitter and never came back. Since then, Caleb has been searching for her. Claudia also had hired a private detective to find Caleb. Eventually, he finds him, and Caleb goes to California to meet his mother. When he returns to Rosewood, Claudia gets in a car accident which forces Caleb to go back to Montecito. His girlfriend Hanna Marin (now daughter in law of Claudia) figured out that "A" had run her off the road.
Claudia hires a private detective to search for Caleb. The person eventually seeks out Caleb and gives him her number. Though reluctant at first, Caleb takes Hanna's advice and calls her. He talks to her, and it feels really good. She then arranges for him to visit California for a reunion. She finally meets her son, after waiting for twelve years.