Kyle Blake, aka K-Train, is a social media and viral video celebrity who made his name by being a superhuman glutton for punishment, with inhuman strength and durability. He is famous for Jackass-style stunts and stupid "internet bro" antics. He is obnoxious and full of himself, and might actually be the postmodern superteen apotheosis of the internet bro meme. Kyle is Jack Flash's main internet rival. Or at least, he thinks so.