Seth Welch

Seth Welch is a Sergeant in the United States Marine Corps and the commanding officer of Marine Corporals Ethan LaCombe and Kelvin Taylor.
==Biography==
===Pre-Series===
===NCIS Season 6===
==Personality==
==Physical Appearance==
Category:Americans in NCIS
Category:One-Off NCIS Characters
Category:Marines in NCIS
Category:Marine Sergeants in NCIS