Forged in Fire

Doug Marcaida knows how to use a blade.

- Emily Aslanian

9/8c, History Channel

The fan-favorite judge on the weapon-making competition series, which celebrated 10 years this summer, is the show's edged-weapons impact specialist and a skilled martial artist. "This is my passion," says Marcaida, who inspires blade artists with his skills, honing and designing swords and knives. "It's what I call my 'cycle of knife,' he adds, laughing.