His birth certificate may read Christopher Boykin, but he's known across the globe as Big Black. One look at the 375-pound, 6-foot-6-inch African American executive protection specialist is all that's needed to explain his obvious nickname.

Big first linked up with Rob Dyrdek and DC Shoes for a supporting role in a segment in the 2003 skateboarding film, The DC Video. The two were featured together in a skit where Rob hires a security guard -- Big Black -- to protect him from security guards. Rob and Big reprised their roles a year later in The DC Video: Deluxe Edition DVD, then powered through a world-wide tour. Needless to say, the two hit it off and the rest is history.

In addition to pumping iron and protecting skaters, Big Black has his own signature hat, sunglass, rims, t-shirt and shoes collections hitting the streets.

Considering the time he spends with his client, living with Rob was a natural move for Big. Just as natural are the laughs. "Life with him is all-day comedy," Rob says. "The world doesn't know what it's in for."