Agent Krill was a S.H.I.E.L.D. operative and partner of Agent Kurdle with whom Krill worked in the agency's division dedicated to uncovering the alter ego of super-humans. When Krill and Kurdle investigated the presence of a new mysterious Thor, they brought in Jane Foster for interrogation, due to her past ties with the original Thor. The agents' agressive inquiry was interrupted by Agent Roz Solomon, a mutual friend of the original Thor.