Joshua Baret Henderson (born October 25, 1981) is an American actor, model and singer. Henderson is best known for his lead role as John Ross Ewing III in the TNT revival of Dallas (2012–2014). He played Austin McCann on the ABC television series Desperate Housewives (2006–2007), and appeared in films like Step Up. He became widely known after his appearance on The WB singing competition show Popstars 2, where he was one of the winners selected to be a member of the pop group Scene 23.
Henderson was born in Dallas, Texas, the son of Sharon Lea Henderson. He grew up in Tulsa, Oklahoma, where he graduated from Memorial High School in 2000. He has a condition called heterochromia, meaning his eyes are two different colors; his left eye is green, while his right eye is blue. Henderson graduated from Tulsa Memorial Senior High School, where he enjoyed playing sports, particularly baseball.