Ronon Dex

Ronon Dex is a fictional character in the science fiction television series Stargate Atlantis. Played by Jason Momoa, he is a Satedan, a civilization from the Pegasus Galaxy who had a technological level comparable to Earth in the mid-20th century but met the fate of all advanced civilizations in Pegasus when their homeworld Sateda (P3R-534) was devastated several years ago by the Wraith. When Ronon Dex and the Atlantis expedition first met in the season 2 episode "Runner", Ronon Dex had been a Runner for the past seven years. He joined the Atlantis Expedition shortly afterwards, effectively replacing Aiden Ford on Sheppard's team after Ford had become addicted to a wraith enzyme and had fled Atlantis.

Jason Momoa, along with some of his fellow cast members, have said that they think of Ronon as the Atlantis version of Chewbacca.

Read more about Ronon Dex:  Role in Stargate Atlantis, Conceptual History