'Kingdom' has its own Ronda Rousey with arrival of badass Natalie Martinez

'Kingdom' has its own Ronda Rousey with arrival of Natalie Martinez

If there's anything the cast and creator of DirecTV's MMA drama Kingdom pride themselves on, it's looking, feeling and being as authentic as possible.

The fighters seen working out in the corners of Navy Street gym are actual athletes. The sweat that covers the faces of cast members during their physically and mentally demanding and bloody fight scenes is real. The body transformations they undergo when their characters prepare for a tough match are true to life.

See also: New 'Kingdom' posters promise knockout Season 2

Going into the series' second season, which premiered last week on DirecTV,