Zog (2003 TV series)

Zog was a Triceraton and a soldier in the Triceraton Republican Army.

Mirage
One of the three Triceratons that was transported to Earth by the TCRI Utroms (TMNT Vol. 1, #6 & 7). After escaping the destruction of the TCRI building, Zog fled to the sewers, where he lived for about a year. Deprived of his natural atmosphere, his brain decayed over this time, causing him to mistake Raphael for a superior Triceraton officer when he ran into him in the sewers. When the Turtles got together, Zog took orders from them and helped clear the way into the Foot’s Hudson Block complex, slaying countless Foot in the process. While the Turtles were elsewhere, Zog was attacked and slain by the three test-worm clones (TMNT Vol. 1, #19 & 20)

How Raphael and Zog met was fully revealed in the final issue of Tales volume 2, "Zog". Zog, delusional from lack of his own world's air, believed that a Triceraton (or perhaps simply a triceratops) skull was his commanding officer. Taking orders from this non-existent officer, he captured Raphael and a Foot Ninja. In order to free them both, the Foot Ninja convinced Raph to reach his yari (Japanese spear), which was out of the Ninja's reach, and hand it to him. Upon freeing himself, the Foot Ninja attempted to kill Raphael. Still chained upside-down, Raph subdued the Foot and used the yari to free himself as well. Before Zog returned, Raph placed the skull on his shoulders, pretending to have killed Zog's two captives, and using his "commander powers" to transform into a likeness of Raphael, telling Zog to call him "Zoraph".

2003 series
Zog was one of the Triceraton troops sent by the Triceraton Republic to capture Professor Honeycutt. Triceraton and Federation troopers were closing in on the Turtles and the Fugitoid on an asteroid when all were suddenly teleported.Turtles in Space, Part 5: Triceraton Wars The Turtles and Fugitoid materialized at the TCRI building along with the Federation troopers and Triceraton warriors. Mr. Mortu managed to teleport the Federation troops and Triceratons back to their place of origin, but Zog managed to escape by slipping into the sewers.Secret Origins, Part 1

Some time later, the Turtles were riding across the sewers on their Shell Sleds when they encountered Zog. Zog unexpectantly assaulted one of the watercraft, thinking it was a hostile Federation combat robot. The turtles realized that Zog's helmet was cracked and the Earth's oxygen was making him loopy, causing him to think of them as an elite high ranking recon Triceraton squad. After Donatello fixed his breathing mask (though Zog still remained partly delusional), the Turtles were able to establish what had happened to him. Right afterwards, the Turtles were attacked by one of Shredder's androids disguised as Splinter. At Leonardo's command, Zog engaged the android and ripped it in half, shouting "FOR THE REPUBLIC!".

After the android was defeated, the Turtles, Splinter, and Zog headed off to find out where the android came from. At the harbor, Michelangelo and Zog were sent to unmoor the Foot's ship so it could be sunk, but were surrounded by Foot Ninja.Rogue in the House, Part 1 Zog easily defeated the Foot as Michelangelo untied the last rope, and they barely boarded the ship. Zog was afterwards able to stop Hun from killing Leonardo by throwing Hun through a steel door into the sea. Outside, however, they were met by the Utrom Shredder and his Foot Mechs. During the following battle, when Shredder was about to finish Splinter, Zog intervened and tackled the Utrom Shredder; in retaliation, Shredder stabbed Zog in the back. Zog showed his honor and commitment to the cause he believed in when he took hold of the Shredder and jumped into a blazing fire with him, giving the Turtles a chance to escape. Following their escape, they took a moment to honor his sacrifice.Rogue in the House, Part 2

When the Turtles traveled to the dinosaur ages with Renet to stop Savanti Romero at a later point of time, they were assisted by a triceratops, whom Mikey named "Zog." Return of Savanti, Part 1

Back to the Sewer
When returning from 2105, Viral sent the Turtles and Serling back to the prehistoric ages once again, where they were attacked by a hostile Spinosaurus, but Michelangelo managed to tame a wild triceratops whom he named "Zog the Second", aiding them in successfully drive off the predator.

Video Games
Zog appears in the game Teenage Mutant Ninja Turtles 2: Battle Nexus.

Zog