From Ultimate Comics: Avengers Vs New Ultimates #5. Dr. Leonard Williams was the ‘original’ Hulk in Ultimate Comics. He worked on reverse engineering the supersoldier serum with Banner and was his mentor. Upon completing this project, however, he left his life as a research scientist behind and set out to be an unstoppable superhuman gang lord in South America. Here, having been stripped of his Tyrone Cash/Hulk persona and put under heavy hypnosis by Blade, he explains the mechanics of his superior supersoldier drug to Nick Fury and his team of Avengers. His character is summed up in one humorless, cynical line.
I can’t say I liked the driving idea behind his character - gangster stereotype Hulk who’s even smarter than Banner - but despite that I enjoy this segment. Especially when compared to the ridiculousness that was this miniseries.