He had a recurring role as Lucien in the short lived comedy series Undeclared in 2001. His character was an unctuous resident assistant to the series main characters.
He had a recurring role as the artist Johnny in Friday Night Lights in 2005. His character was a classmate of main character Claire Fisher.
He had a recurring role as Herc, a wheelchair using sportsman, in highschool football drama Friday Night Lights on NBC. He appeared with fellow fifth season co-star Jesse Plemons in the series; their breaking bad characters shared screen time.
Rankin had a starring role as Tyler Briggs on the short-lived NBC medical drama Trauma in 2010
He had a recurring role in the FX crime drama Justified from 2010 to 2012 playing the white supremacist criminal Devil. His character in Breaking Bad is also a white supremacist.