She is portrayed by Cameron Richardson.
During the events of the film, Claire has recently enjoyed her success in photography for magazines and is shown to have broken up with Dave due to his inability to take their relationship seriously.
However, Dave is still in love with Claire and constantly tries to rekindle their relationship throughout the film. One such attempt is inviting her over for dinner in the beginning of the film. The dinner ends disastrously and Dave tries to explain about his recently adopted chipmunks but only proceeds to alienate a disbelieving Claire even more.
When Claire meets The Chipmunks in person, she falls in love with them right away and begins to follow their career as her most recent assignment. When Dave loses the Chipmunks to Ian due to a misunderstanding, Claire shows genuine sympathy for his loss and loneliness. She plays a pivotal role in helping Dave get his boys back by tricking guards who let him enter the Theater. At the end of the film, Claire shows up to Dave's house once again for dinner. She attended college with Dave and Ian.
- Claire is considered the modern replacement for Miss Miller and is shown to be at times awkward, yet kind.
- Cameron Richardson didn't reprise her role for the sequels because she disliked being in the first film.