When he doesn't have a cigarette in his mouth, some of his favorite things include pizza, cherry coke, cheese sticks, and the souls of all who oppose him in and out of the ring.

He's a fan of Star Wars, except for Jar Jar Binks. In fact, he is also co-head of the "Anti-Jar-Jar Binks Club". He is a huge Red Wings fan although he likes hockey in general (even in the ring he's been known to get called for a little "high sticking"). Nick is also a fan of Todd McFarlane's Spawn, to the point of being an Unofficial Promoter of the movie. Where there is death, destruction and mayhem, chances are Nick Castle will show his inscrutable face.

Nick is also a huge Sevendust fan. Other bands he likes (but are not all inclusive) are: Apathy, A Perfect Circle, Alice in Chains, Apocalyptica, Audioslave, Bush, Evanescence, Flogging Molly, Fozzy, Godsmack, Kid Rock, Live, Metallica, Nickelback, Nirvana, Ozzy Osbourne, Pearl Jam, Queens of the Stone Age, Ra, Red Hot Chili Peppers, RUSH, Seven Mary Three, Soundgarden, Staind, Stone Temple Pilots, Trapt, Velvet Revolver, Violent Femmes, and White Zombie