Justin appeared in The Dave Matthews Band's music video of Under the Table and Dreaming.
Justin was nominated in 2006 and 2008 for a SAG Award along with his Grey's Anatomy castmates for Outstanding Performance by an Ensemble in a Drama Series. They won the award in 2007.
Justin was one of People Magazine's Sexiest Men Alive in 2006. He was mentioned in the "Sexy at every age, Age 36" section. Justin was also chosen as one of People Magazine's Sexiest Men Alive for 2007.
When Justin was a kid, one of his childhood friends was killed by a neighbor because he believed the kids were stealing from him.
Justin is 5' 11" (1.80 m) in height.
Justin is of Irish and German descent.
Justin's parents are John and Pam, both deputy police officers. Besides his twin brother Jason, Justin has an older brother and two older sisters.
Justin met his wife, Keisha, when he was modeling with Calvin Klein and she was working as a modeling agency booker. They married in 1993 and have five children named are Isabella, and twins Maya and Kaila, Eva and Jackson.
Justin: (on Grey's Anatomy fans) I get a lot of cat calls and I'm like, 'It's a character, give me a break.' Some people, they're like Trekkies. There's some women out there that are, like, really into it. And then the guys are always like, 'Oh, my wife loves the show, but they know everything about it too.
Justin: (on learning medical jargon on Grey's Anatomy) We have a wonderful woman, Linda Klein, who's the technician. So, if we ever have a question about a certain surgery or disease, we can just talk to her about it, and she'll break it down into common folk language. Sometimes, just getting down some of the three or four syllable words is enough work. The show really is about relationships, more than anything, and some of the patients.
Justin: (commenting on his hospital stay in early 2008) I suffer from a biological sleep disorder. Your body is tired but your mind keeps racing. You lie down and then you get up and pace, and then you lie down but you can't fall asleep...I went a good two months without really sleeping. A lot of things were written about me. I don't want to concentrate on them. I'm telling the truth.
Justin: (on his sleeping disorder) It's an issue that I've had for a while. It's a biological sleep disorder. Your mind keeps racing, and your body is tired. It wants to go to sleep, but it can't. I got to my wit's end.
Justin: (whether he'd make a good doctor in real life) I would not be able to retain all the information, all the medical jargon these doctors do. I'm not really intelligent enough is what I'm saying.