Thane Krios is a fictional character in BioWare's Mass Effect franchise, who first appeared in Mass Effect 2 as a party member (or "squadmate"). The character is a drell, a race of extraterrestrial reptilian humanoids who form a sociopolitical alliance with the hanar, a sentient species of jellyfish-like entities. Thane Krios is voiced by Keythe Farley in the video game series.