Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
Sigyn was an Asgard—one of their most intelligent—who once worked on the Asgard life-extension project with Thor, Heimdall, and Fenrir at least until the Replicators became a major threat and Fenrir left the project to work on military research. (SGA: "Nightfall")