Man-Ray/Ray Fillet, Merdude, and the Teenage Mutant Ninja Turtles should be on this (while the TMNT usually fight on land it has been shown that they are adept in underwater combat, as seen when they fought Armaggon the shark mutant on your list)
Sub-Zero became a hero notably in MK3, he has also been relatively heroic in MK games, compared to the other characters, hard to call deadly force types heroes but he is close in that universe. Scorpion likewise was fighting against what's his name, the other sorcerer who was not Shang Tsung... the one that looked like a skinny Kratos... he kinda evolved into a hero briefly during MK deadly alliance and deception. Deathstroke was notably a member of the Titans for a short time, Scream reformed and became a hero as seen in Venom: The Hunted, Venom: Tooth and Claw, and was a "hero" when Eddie Brock killed her, Crossbones heroic status really only applies to his self-serving stint as a member of Luke Cage's Thunderbolts, Doctor Light briefly reformed, just look at his team affiliations.
I love that you coined the term "Necro-Zoophilia" in reference to Juntara... She was a weird case file, she slept with a Jaguar spirit and gave birth to a human/jaguar hybrid.... Mmmmkay.... some really perverted stuff is just oh so acceptable for all ages in comics lol
Actually I think every member of Alpha Flight, New Warriors, Big Hero 6, Darkhawk and Silver Surfer are likely, beyond them I would bet on Nomad, Gladiator, Corsair, Werewolf By Night, Man-Thing, Boom-Boom, Warpath, Feral, Wolfsbane, Sleepwalker.... and maybe Slapstick. So way more then 6
Jaunty is not TECHNICALLY a talking monkey, yes he sometimes appears in an ape form, but he has also been known to appear as a snake. He is a damned human soul who appears as a monkey or snake in deadside.