Maybe The Stalker Is The First

[Darktigr]

   I dunno I may have missed out on some of the Lore for stalker, maybe this is just obvious, but is Stalker the first warframe? the first excalibur. His body and abilities are pretty much the same as the Excalibur, and I'm pretty sure the lore says that the Tenno did something bad to the Orokin and the Stalker wanted revenge. It would explain his passion for the Orokin because he would be the first one, showing immense gratitude and loyalty to the Orokin, because they made him. I think that he was the First Excalibur, and after seeing what the Teno had done to the Orokin he probably wanted to break his ties to the Tenno, bye changing his helmet. I dunno just something that occurred to me when I was lookin around in the Codex.

[Renathy]

No, Excalibur was the first. Stalker was some sort of Guarding or something.

[XenosInfinity]

His codex entry states he was a non-Tenno guard of some description in the Orokin empire and present at the Collapse on the day we murdered their entire civilisation.

[TheStag]

The Stalker was a member of the Low Guardians, which I believe were people who used Tenno-like exosuits, but they were not on the level of Tenno.

[Darktigr]

alright, like i said, i need to ctach up on my stalker lore

[gnat6]

The impression I got from stalker's lore is that he is quite possibly the last tenno because it sounds like he went into the void to get his powers after the orokin were already dead.