Credchit is the nickname for a rogue Corpus proxy that seems to go about their business as a freelance bodyguard or... something. She speaks Corpus and common universal languages, so 'English' isn't new to them either.

They don't have a name and not many seem to know where she came from, but those who are used to her seem to have taken to calling her Credit, or Credchit, due to being rather rich in terms of Warframe economy.

She's a friend.
Me? Make a Warframe OC? Who would've thought.

 Mote_of_ash did the art.