Sasquatch (Walter Langkowski) is a fictional superhero appearing in American comic books published by Marvel Comics. Publication history Sasquatch first appeared in The Uncanny X-Men #120 and was created by John Byrne. Fictional character biography Dr. Walter Langkowski is a member of Alpha Flight, native of Vancouver, British Columbia, Canada, renowned physicist, and professor at McGill University. He is also a professional football player for the Green Bay Packers. In the 1993 miniseries The Infinity Crusade it is revealed that Sasquatch is Jewish. He possesses the ability to change into an orange-furred beast known as Bigfoot. This metamorphosis is triggered by willpower. In this form, Langkowski has immense physical attributes and natural weaponry. These powers were a result of Langkowski's self-experimentation with gamma radiation. In an attempt to become like the Hulk, Langkowski bombarded himself with a gamma ray projector at his laboratory near the Arctic Circle. As a proposed explanation for why he transforms into an orange behemoth instead of green (as gamma-irradiated persons are usually affected), Langkowski assumed it had something to do with the Aurora Borealis. However, unknown to Langkowski, it was not the gamma rays that turned him into Sasquatch, but in fact that his lab equipment opened a doorway between their world and the "Realm of Great Beasts." When it was opened, a mystical beast named Tanaraq invaded Langkowski's body and granted him his powers. Langkowski learns how to maintain his own personality and intelligence while in Sasquatch form, and this was very successful for a time. Alpha Flight As a member of the Canadian superhero team Alpha Flight, Sasquatch battled the X-Men in an attempt to capture Wolverine. He later battled the Hulk, and then, alongside the Hulk, battled the Wendigo. Alongside Alpha Flight again, he battled the Great Beast Tundra. With Alpha Flight, Namor, and the Invisible Woman, he first encountered the Master of the World. He then battled the Super-Skrull. With Alpha Flight, he battled Omega Flight. Alongside Rom and Alpha Flight, he battled the Dire Wraiths. With Alpha Flight, he went on a mission with the X-Men and clashed with Loki. Sasquatch was becoming increasingly prone to feral rages, making him reluctant to function in a fight. His Sasquatch form was eventually revealed as an incarnation of Tanaraq, who took control of Sasquatch, forcing Snowbird to slay Langkowski. New body and identity After his death, Langkowski's teammates traveled to the realm