Rainbow Sun Francks is born in Toronto, Ontario, Canada. He is the son of actor and musician Don Francks and dancer Lili Francks, a member of the Plains Cree First Nation. He is also the younger brother of Cree Summer.
Francks was an on-air personality at MuchMusic, a Canadian music video and variety television channel.
His credits include Stargate Atlantis Season 1 as US Marine Lt Aiden Ford, Dev Clark on The Listener and roles in Eyewitness (2016), Defiance (2015)
He produces a hip hop group known as The Oddities. Francks is also involved with a video game website, Console Creatures.