About halfway through the episode, Oscar Isaac's Steven Grant discovers a phone in his apartment being used by his other personality, Marc Spector. Amid the many missed calls from Layla (May Calamawy), there's one from a person named Duchamp.
If you're scratching your head wondering just who Duchamp is, that's because he's never featured in the MCU before now. He is a Marvel comics character, though, and has a history with Spector.
In the comics, Jean-Paul Duchamp is a soldier who met Spector in North Africa. Duchamp became Spector's pilot, and was involved in the incident that led to Spector being brought back to life by the Egyptian god Khonsu and becoming Moon Knight. The duo are close enough that Spector even gives Duchamp the nickname Frenchie.
Eventually, Duchamp ends up working as a maître d' – could that be Frenchie taking Grant's order for steak in the episode? It's a longshot, but who knows…
Whatever Duchamp is doing now, he's clearly in contact with Spector, so we can assume they have some kind of working relationship. How that's going to play out across the series remains to be seen.
In the meantime, check out our ultimate guide to Marvel Phase 4 for everything else the MCU has in store for us.