The ER alum is playing Agent Jacqueline Sloane, forensic psychologist that Director Vance (Rocky Carroll) personally wanted to recruit to the team.
Bello made her entrance in the opening of the episode, which was titled "Skeleton Crew." Her car allegedly breaks down and seeks refuge in Agent Gibbs' (Mark Harmon) home.
The drink coffee together and flirt a bit with neither party revealing they're each federal agents.
Fans ate up the exchange and quickly went to Twitter to share their excitement.
"I'm super excited to see Maria Bello on NCIS," one fan wrote. "I'm hoping to see (more) sparks between her [and] Gibbs!"
Another added, "OMG been waiting for this moment since I heard about it... thought [it was] too good to be true, but it's true: Maria Bello joined my [favorite] show."0comments
See some of the reactions below.
-do you drink coffee?— amelie (@bensonnliv) October 18, 2017
-ummm yes? by the gallon
I ALREADY LOVE MARIA BELLO’S CHARACTER LMAO GURL SAME #NCIS
NCIS airs Tuesdays at 8 p.m. EST on CBS.