J.R. Martinez (Brot, AMC) will follow the fancy footsteps of AMC-ers Cameron Mathison (Ryan), Susan Lucci (Erica) and Aiden Turner (ex-Aidan) on ABC's DANCING WITH THE STARS, joining the cast of its 13th season. Martinez will compete for the mirror ball trophy alongside Ricki Lake, Chaz Bono and Nancy Grace, among others.