Tuesday nights have become Rocky Carroll nights.

Carroll not only stars on 'NCIS' as Director Leon Vance, he's also a recurring cast member on the show's new spin-off, 'NCIS: Los Angeles.' The two hit CBS shows often combine for nearly 40 million viewers, making Carroll a true household face.

The veteran TV and stage actor dropped by AOL TV's studio to discuss 'NCIS' huge ratings surge, working with former 'Chicago Hope' co-star Mark Harmon and what to expect from the rest of the seasons of both shows (original flavor and 'Los Angeles').