Moon Knight episode 6 finally introduced a fan-favorite character

gamesradar.com:

Moon Knight finally introduced a character it’s been teasing since the very first episode. Spoilers ahead. 

Moon Knight episode 6 brought Marc Spector’s story to an end with an epic finale. We saw Marc save Steven Grant from damnation as they worked with Khonshu to stop Ammit’s plan. The Marvel show even introduced a brand-new superhero with Layla becaming Tawaret’s avatar. Then, in the Moon Knight post-credits scene, Moon Knight finally brought Jake Lockley to the fold. 

The final scene began with us seeing Arthur Harrow, who has Ammit trapped inside of him, in Sienkiewicz Psychiatric Hospital. He’s then wheeled out of the building by a mysterious man clad in a hat speaking Spanish, who leads him into a limo waiting outside. Khonshu is sitting inside and Harrow warns the God that he cannot kill him and Ammit.

Khonshu says: "You want to know something? Marc Spector truly believed that after he and I parted ways, I wanted his wife to be my Avatar. Why would I ever need anybody else when he has no idea how troubled he truly is? Meet my friend, Jake Lockley." In one of the most brutal moments of the episode, Jake turns around and shoots Arthur point-blank in the head as he warns, in Spanish: "Now is your time to lose."

This is not the first time we saw a glimpse of Jake in the episode either. Earlier on, during the fight with Harrow, Marc and Steven both blackout. In a scene reminiscent of a moment from episode 3 when Harrow’s men were killed, Marc wakes up and almost everyone around him is dead. Layla asks him what just happened, but it’s never explained who was behind the attack. Now we know.

All we know in the show’s universe about Jake so far is that he’s a driver, has a strong penchant for violence, and speaks Spanish.