(Green Lantern II #126) - The Weaponers of Qward hired Shark to dispose of Green lantern while they set up an outpost on Earth, fitting him with a weapon and promising him great rewards. Shark terrorized a Coast City harbor until Green Lantern appeared, and incapacited him with the Weaponers weapon that collected gold from the ocean and formed a capsule that trapped Lantern. The Weaponers reneged on their agreement and de-evolved Shark into his original tiger shark body. He would have suffocated on land if Lantern hadn't freed himself and put the Shark back in the ocean.

(Green Lantern IV #4-6) - Shark, now in a complete animalistic state physically and mentally, only thought of satisfying his hunger. He smelled lovers on a midnight swim in Coast City, and sent a school of his sharks to dismember the male. He saved the last scraps for himself, and then pursued the woman onto the beach, terrorizing her before consuming her. Green Lantern tracked him down and they had a tremendous battle, with Shark’s only thought being to eat the hero. The Gremlins interrupted them, checking in on their experiment. They fed Shark and locked him up in a tank, planning on selling him as a weapon in an intergalactic war. Green Lantern battled and defeated the Gremlins, and Shark took the opportunity to break out of his prison and return to the ocean.

(Green Lantern IV #16) - Amon Sur broke into Hangar 44 to steal the ship his father Abin Sur had crash landed-on Earth in. Shark and a number of other prisoners watched on as Amon gunned down the air force guards.