- Not to be confused with Avalanche Yeti.
–Eddy's final words., StH #66
Eddy the Yeti was, as his name suggests, a yeti from the Southern Tundra who befriended Nate Morgan after being rescued by the Overlander. Fitted with cybernetic parts, Eddy remained Nate's firm friend until he perished saving Nate, Sonic the Hedgehog, and Miles "Tails" Prower from a collapsing castle following their battle with Ixis Naugus
As a yeti, Eddy was part of a Mutate race created during the Forgotten War between the Order of Ixis and the Albion Knights of Aurora. Eddy lived in the polar regions of Mobius, where he fell victim to a near fatal accident. Badly injured, he would have died had it not been for the arrival of the wandering exile Nate Morgan. Nate saved his life through the use of cyborg components, and the pair took up residence in an abandoned Ixian castle. Eddy became Nate's close companion and protector, and shared his desire to protect the Power Rings from misuse. However, their happy life together ended with the return of Ixis Naugus, an old enemy of Nate's and one of the Order's last survivors. Eddy, detecting Sonic the Hedgehog's presence, attacked him and Tails before bringing them inside and unwittingly doing the same with Ixis Naugus. In the ensuing battle between Ultra Naugus, Ultra Sonic, and Hyper Tails, Nate's castle collapsed. Eddy managed to save his friends, but at the cost of his own life. (StH: #64, #65, #66, CSE)
Sonic would later return to the site of Eddy's great sacrifice to leave a rose in tribute to him, only to be briefly interrupted by yet another attempt of Naugus' to escape the Zone of Silence. (SSS: #15, FCBD: #5)
Despite his fearsome appearance, Eddy was a friendly and gentle being, and fiercely loyal. Though initially hostile to intruders, he displayed compassion as well, saving Sonic and Tails from potentially freezing to death. He also demonstrated great heroism, willingly sacrificing his own life to insure that his friends would live on.
Eddy's abilities were augmented by the replacement of all four limbs and one eye with cybernetic body parts. He possessed immense physical strength, and at least one of his arms had a flamethrower built into it.
- A yeti was seen in the Mobius Timeline of SSSM #1 in the midst of a battle between members of the Albion Knights of Aurora and the Order of Ixis. However, this is known not to have been Eddy, as this was thousands of years prior to his meeting with Nate Morgan and the yeti in question already had cybernetic parts. Issue 2 of the Sonic Super Special Magazine series has stated in the Q&A section that the yeti seen was Eddy's ancestor.