Ladd was born in Hollywood, California, the daughter of Charlie's Angels star Cheryl Ladd and David Ladd, a former actor. Her paternal grandfather was Alan Ladd, a famous film actor, and her paternal grandmother was Sue Carol (born Evelyn Lederer), a Hollywood talent agent and actress.
At the age of two, Ladd began appearing in commercials. Her first commercial was for Polaroid. She began acting in film and television while in school, often working with her mother on films. After graduating high school, she took up acting professionally. Ladd turned to acting in independent films and has become known in the indie film circuit.