Tirin is the son of Cora Moor, and the latest descendant of Captain Nathaniel Moor. He's been in a lot of different settings and has ranged from a bartender in a dystopian city, to a police officer, to a dusty drifter.

Pretty consistently though, he's always been a nice, tenderhearted guy at his core, no matter what incarnation he's in. Also, he universally loves to cook and, more often than not, he's got a somewhat goofy accent. He's naturally adventurous and too curious for his own good, often getting into troublesome situations thanks to his desire to explore places he really shouldn't be in, whether it's a Warren Forgotten By Man or an abandoned weapons bunker now populated by all manner of terrifying critters. He's evidently got the Luck of the Irish on his side, or at least an overprotective creator, because he always come out no worse for the wear.

Interests include collecting hats, climbing things he shouldn't, giant pretzels with cheese, pumpkin ale when he can get it and milk stout when he can't, and the music of Great Big Sea and Creedence Clearwater Revival.