NCIS spoilers and updates reveal Season 23 is set to debut on Tuesday, October 14, 2025, at 8 p.m. It’s Personal For Special Agent Alden ParkerThis time, it’s personal for Special Agent Alden Parker (Gary Cole) because a mobster has targeted his family; s history about to repeat itself? At the end of last season, Special Agent Alden Parker (Gary Cole) discovered his father Roman Parker (Francis X. McCarthy) shot dead in their home. Alden Parker is a skilled former FBI agent and now an NCIS agent who appears to have his life together,” Binder explains, referencing his troubled youth. Come back here often for NCIS spoilers, news, and updates.