Moon Knight's Parallel Identities Have The Hulk To Thank

screenrant.com:

While fans of Moon Knight know the character for his multiple identities and Dissociative Identity Disorder, Marvel aficionados understand the Incredible Hulk has different identities in the same body before Marc Spector — and he gets stronger with every one. Bruce Banner's psyche is just as fractured as Spector's — in some interpretations even before his origin story — and has spent significant time in comics attempting to control his identities. The journey of the Hulk's identities is as memorable as Moon Knight's, and is always tinged with darkness.

Moon Knight's alternate identities didn't originate as separate personalities. Adventurer and mercenary Marc Spector simply created them to better serve his crimefighting endeavors. He made Steven Grant to make connections with the wealthy elite while also allowing himself a method of funding his Moon Knight activities, and he created Jake Lockley to connect with informants in the underworld. These were eventually retconned into entirely separate alternate personalities — and while Hulk initially started out the same way, the paths of the two heroes divulged dramatically.

Related: Moon Knight's Identities Have A Secret Deal To Keep His Body Alive

The Savage Hulk is the most well-known incarnation of Bruce's alter ego; he's impossibly strong, incredibly quick to anger, speaks in simple, declarative statements and only wants to be left alone. But he wasn't technically the first Hulk — that honor goes to Joe Fixit, the grey Hulk and the version of the character first seen in The Incredible Hulk #1 in 1962 (andHulk #347 for the modern-day incarnation). Fixit is a hybrid of Steven Grant and Jake Lockley: a violent, streetwise mob enforcer who prefers fancy suits, well-made