American Ninja Warrior

5 time national finalist on NBC’s American Ninja Warrior.™  


Ninja Vs. Ninja

In addition to his time spent on American Ninja Warrior™, Karsten has appeared on USA’s Ninja Vs. Ninja™ with his team Karsten’s Fast Kats.

Team Ninja Warrior features some of the biggest names from the American Ninja Warrior franchise.

The dual-running course, which will be highlighted by even more challenging obstacles this season, incorporates speed, human agility, skill, and a whole new strategy of racing. His team consists of himself, Kevin Klein, and Lauren Keen.

Karsten Williams

Area Director @ Ninja Nation
ANW - Contestant

Karsten Williams has competed in 5 seasons of American Ninja Warrior™ completed 5 city qualifying courses and made it to the national finals 4 times.

Kevin Klein

ANW Contestant

Kevin has participated on American Ninja Warrior since Season Four.  He has qualified for the Vegas Finals three times, notably also during his Rookie run of Season Four. He has also competed on Ninja Vs. Ninja as part of team Karsten’s Fast Kats for Season Two and Season Three.

Lauren Keen

ANW Contestant

Lauren is a full time physician recruiter in Dallas Texas and two time competitor on American Ninja Warrior.™