Robert Bruce Banner
Mr. Fixit is the Noir version of Hulk.
He looks exactly identical to his alternate counterpart, but is wearing a gangster attire.
When the Noir Universe has color, he now has green skin and closely resembles Hulk.
Before the Siege of Perilous shattered across each four universes, including Noir universe, Joe Fixit and his gang were having their first war against Hammerhead's gang. The fight caused a building to come crashing down as Mr. Fixit saw and helped Mary Jane Watson (Noir) rescuing the residents of the building where his gang and Hammerhead's gang fighting at. However, Mr. Fixit tried to hold the building up to save Mary Jane Noir, but Mr. Fixit was weaken from the previous battle he fought against Hammerhead and unable to save Mary Jane from death, burden by a guilt that cause Spider-Man Noir blaming Fixit for his failure.
By the time when some Siege of Perilous shard comes to Noir Universe whereas the mainstream Spider-Man and Kid Arachnid comes to take the shard back to where it belongs in Return to the Spider-Verse Part 3, but falls into the hand of one of Hammerhead's former henchmen Mister Negative, Spider-Man tries to reconcile Spider-Man Noir and Mr. Fixit's problem regarding of the death of their world's Mary Jane. With help from Spider-Man, Mr. Fixit and Spider-Man Noir were able to defeat Mister Negative and restore everyone that Mister Negative petrified as well as bringing color to this reality by Mr. Fixit himself, who used the shard temporarily by smashing it to the ground while under his hand, then return it to Spider-Man and Kid Arachnid, as two Spider-Men about to continue to the next universe where the last shard is.
- In the comics, Hulk used the alias Mr. Fixit (full name Joe Fixit) when he was the Grey Hulk.