Justin Hartley knows why Tracker is such a hit for CBS - and most of it has to do with Colter's masculinity.

Hartley, 48, was asked about the show's success during a recent interview with Men's Journal , to which he said, "One of the things I really love about Colter and the way we've built him is that he doesn't apologize for his masculinity. I think that's what people are looking for. You're asking yourself, ‘What kind of people do I want to hang out with?' And particularly: ‘What kind of male friends do I have in my life that I really value?'"

The actor was thrilled with the example they are able to set with Colter.

"I think we've crafted a character that is so emotionally evolved, and he really does want to get to the root of why people do things," Hartley continued. "The

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