Talk:Story and History/@comment-212.219.117.108-20160105141648/@comment-12.40.206.6-20170811122729

Stalker is not a Tenno as Tenno are a specific group of individuals (the children of Zarimon). Stalker was an Orokin loyalist who was presumably experimented on with transference which drove him insane. That's a lot of conjecture but it's based on things that Hunhow says in the quest you mentioned as well as his codex entry. We won't know 100% for certain until DE release more about his past (if they do. I hope they do. He's an interesting character).