Jennifer Aniston was considered for a significant role on NCIS early on in the show's history. The producing and network team mentioned this in celebration of the show's 20th anniversary. It is not specified which role Aniston was up for, but it could have been a character similar to Caitlin Todd. Aniston's availability and salary may have been factors in her not ultimately being cast. However, her inclusion could have added a major shock factor to the show. Overall, the team acknowledges the speculative nature of these discussions and how big stars can impact a show's success.