Origin

Walther Langkowski is from Vancouver, BC, Canada. Langkowski went to Pennsylvania state where he met Bruce Banner.

During an experiment with gamma radiation, Walter Langkowski believed that he had aquired powers similar to the Hulk, but that he could control his transformation simply by willing it (though transforming caused him a great deal of pain).In actuality, he shattered an interdimensional barrier. In the process he made contact with entities known as the Great Beasts. Langkowski's soul was linked with an evil Northern spirit called, Sasquatch. Langkowski controlled this spirit for most of the time, but would eventually lose out to its savage nature.

Sasquatch was killed by team-mate Snowbird, as it was her mission to slay the Great Beasts. However, they didn't give up on Walter, and Alpha Flight went to rescue his soul. They accomplished their goal, but since Walter's body was destroyed, his soul was forced to inhabit Roger Bochs' Box armor, then Smart Alec, then a deceased Snowbird. This last form made Sasquatch turn white instead of orange, and when he transformed back into human form, he found he had a woman's body! He even changed his name to Wanda for a time until Snowbird's spirit mystically transformed him back into his old body.

At this point Alpha Flight disbanded and Walter left for Antarctica to continue his research on gamma radiation. Eventually, Walter rejoined a reassembled Alpha Flight, but the new team soon met with disaster at the hands of a mutant called The Collective, who absorbed the powers of 50 mutants after M Day.

In New Avengers #16, he seemed to be killed with the rest of Alpha Flight by The Collective. Somehow, he managed to survive and was recently seen assembling a new Canadian super team. This team will be seen in the pages of Omega Flight.

Interesting Fact: Before becoming Sasquatch, Walter played for the Green Bay Packers and amassed quite a fortune...

Powers

As Sasquatch, Lankowski possesses super human strength. Sasquatch's strength is considered very high, but just how high depends on the writer. On certain occasions, he has been shown feats of strength rivaling the Hulk (such as lifting a navy destroyer!) Therefore, Sasquatch could potentially be ranked among the strongest superheroes in the Marvel Universe.

In addition to strength, he has very high endurance, due to a healing factor. He has sharp claws and superhuman agility and stamina. His Sasquatch form is 10 feet tall and weighs 2000 lbs.

He is also a brilliant scientist to boot, specializing in radiation. Unlike the Hulk, he retains his intellect in his Sasquatch persona. He is very durable. If he gets damaged, he has an accelarated healing factor. As Sasquatch, Langkowski has a thick coat of 

orange fur that prevents him from the cold weathers of Canada.  

Alternate Realities

Earth-3470

Exiles version of Sasquatch from Earth-3470 was not Walter Langkowski, but Heather Hudson. (no relation to Earth-616 Heather Hudson)

She was freed of Tanaraq, and is now on mission control for the Exiles.