Gog comes from the Tsiln alien race from the planet Broi located in the Wyllis star system. Gog was born in the realm of Hazlip and was given to a young Halzli prince as a pet. Gog was taken good care of by the prince, however this changed when Halzli went to war. Gog was separated from the prince and was exiled from the planet. As an infant, Gog was sent to Earth in a warp-drive starship along with a baby female and both were incubated on the ship.
The starship crashed into the Savage Land and the female infant did not survive. Kraven the hunter finds the starship and discovered the infant alien inside. Kraven would take care of the infant alien and act as his adoptive father. The alien would double in size daily until it reached its adulthood average height of 300 feet. Kraven would name the alien Gog after a biblical giant and use him to help build a kingdom in the Savage Land.
Mayor Story Arcs
Gog came to the attention of JJ Jameson when a news story of a guide leading a number of scientists on a geophysical survey of the Savage Land was attacked by a gigantic monster. Jameson wanted to do a whole series on the Savage Land and do an in-depth look at the unknown land and the real lowdown on the creature that attacked the scientist. Jameson, Peter Parker, Gwen Stacy and other members from the Daily Bugle came along for the trip. The group discovered an alter of a giant lizard and were confronted by some jungle men. Suddenly Gog appeares and terrifies the crew. Gog grabs Gwen Stacy and smacked Peter Parker into the jungle. Gog took the blonde beauty back to Kraven where he had plans to make her his queen. Peter Parker changes into his Spidey outfit and looks for Gwen in the vast jungle. After a fight with a giant snake, he would fall into some quicksand. Kazar and Zabu discover Spider Man and save him before he is engulfed by the quicksand. The trio would find Gwen, Kraven and Gog and a huge fight would ensue. Kraven battles Kazar while Gog tries to distract Gog. Suddenly a giant prehistoric lizard appears and engages Gog in a fierce battle. Gog would kill the giant lizard by snapping its neck. Spider Man entices the alien to give chase and he leads Gog into a quicksand pit. Gog is unable to free himself and is swallowed up by the ground and is presumed dead.
Return and The Sinister Six
While it may have seemed Gog meet his demise in the quicksand, it later turned out that he had survived. Gog was rescued by The Plunderer who used the Tslin to do his bidding and commit crimes. However, Gog grew bored of this and wandered off.
Later Gog was recruited by Doctor Octopus to join the Third incarnation of the Sinister Six. During these years Gog's size and strength grew enormously, to the point where it knocked out Professor Hulk and Ghost Rider (Danny Ketch) with a single strike. After the six were defeated the heroes decided that Gog was not truly evil and instead misjudged, so Reed Richards shrunk Gog using Pym Particles sending it back to the realm of Haizlip.
After being sent back to his realm by Reed Richards, Gog witnessed the end of the Haizli war. Gog was reunited with his former owner, however the two's exchange was short lived as the boy died in war. The Queen had discovered the lifeline tablet, that had been sent to there dimension thanks to Doctor Strange. The queen smashed the tablet to pieces, giving the fragments to Gog telling him to not let the fragments fall into the wrong hands.
Powers and Abilities:
Gog is from the Tsiln race where they can grow up to 300 feet when they reach adulthood. During incubation period, their minds are programmed with Tsiln language and culture. These aliens are very loyal and gentle towards the ones they love. Gog had superhuman strength, durability and a semi-prehensive tail he can use to strike enemies.
Gog's height and size depends on what dimension Gog is in, while in Haizlip Gog was roughly the size of a small dog, while on earth Gog's size increased to the point where he towered over buildings.