If you were referring to the Spider-Man villain : Doctor Octopus.
Origin
This giant has his pet octopus attack the Sea Devils and try to crush them.
Current Events
Octopus Man hasn’t appeared since his one-shot comic debut.
Powers & Abilities
As a giant himself, Octopus Man possesses immense strength similar to that of the Giant-Man incarnation of Hank Pym. He is also immune to the waters of the seas, and controls an enormous Octopus. This Octopus itself also has strength, although not as strong as Octopus Man himself, is still capable of easily crushing humans.