Castle’s Jon Huertas Teases Season 5 Guest Stars and Reveals Details About His Upcoming Album! (VIDEO) Tweet January 13, 2013 at 10:00AM EST by Alyse Whitney Related: Castle, Jon Huertas Jon Huertas is a busy guy. In addition to playing Javier Esposito on our favorite show, he’s juggling his music career and hanging out with his co-stars after hours. On the People’s Choice Awards red carpet, SheKnows caught up with Jon, chatting about “really sexy” upcoming guest star Kelly Hu, and his new album, Grown and Sexy, which comes out in February 2013! Check out the video to see how he describes his music — spoiler alert: there’s violins — and what he’s looking forward to on Castle this season.