Dave Canterbury. Got me into bushcraft, like him or not, but that man is quite knowledgeable and seems to consume knowledge like a black hole and spread it like dust storm. Just watch an early and a late episode of duel survival with him in it and the transformation is incredible. He does a great deal of research and seems to actively be expanding the business of bushcraft in general. Mistakes aside, he is a hero of bushcraft to me.
Real Historical Heroes of Bushcraft for all Americans: Teddy Roosevelt,Gifford Pinchot, Henry David Thorough, and last but certainly not least: John Muir. You go out into the Sierra Nevadas and sleep outside without a fire and wake up cold tired and hungry for the heaven (not hell) of it.
Finally a very personal one,my recently deceased uncle, Marcus Macaluso. Hiked the entire Appalachian Trail north to south, by himself with no provisions, than hitch hiked west touring many of the nations parks, flew out to Hawaii to do relief work for some years, and finally returned home to PA and became a arborist and community activist; saving many people's lives through outreach. The entire county came to his wake. Not very bushcrafty, but a major inspiration to me.