Leffen aka William Hjelte Verified Contact Details ( Phone Number, Social Profiles) | Profile Info-William is a gamer in Super Smash Bros. Melee, in which he is a Fox main. He is popular by his Username Leffen but his real name is William Hjelte. He is one of the best Melee players in the world along with Armada, Hungrybox, Mango, and Mew2King. William has a channel on YouTube where he has posted gaming content and more than 27K people are subscribed his channel. He has also an account on Live streaming website Twitch where he accumulated 67K followers. Read More