NCIS Season 15 Characters & Cast — No Spoilers
Every character in NCIS season 15 with photos and the actors who play them, including Mark Harmon, Sean Murray, Wilmer Valderrama — spoiler-free, nothing from later seasons.
- Leroy Jethro Gibbs — played by Mark Harmon
- Timothy McGee — played by Sean Murray
- Nick Torres — played by Wilmer Valderrama
- Jimmy Palmer — played by Brian Dietzen
- Dr. Donald 'Ducky' Mallard — played by David McCallum
- Abby Sciuto — played by Pauley Perrette
- Ellie Bishop — played by Emily Wickersham
- Jack Sloane — played by Maria Bello
- Clayton Reeves — played by Duane Henry
- Leon Vance — played by Rocky Carroll
- T.C. Fornell — played by Joe Spano
- Kasie Hines — played by Diona Reasonover
- Jessica Shaeffer — played by Hilary Ward
- Delilah Fielding — played by Margo Harshman
- Grace Confalone — played by Laura San Giacomo
- Mary Elaine Smith — played by Fran Bennett
- Kent Marshall — played by Mark Engelhardt
- SGM Robert King — played by Peter Jason
- Terry Spooner — played by Eddie Jemison
- Karen Stradivarius — played by Diandra Lyle
All seasons of NCIS: full spoiler-free character guide