Was Carter a Thing?

Assimilated. The Carter-Thing was a Thing which assumed the form of Sam Carter, an American helicopter pilot temporarily stationed at the Thule Antarctic research station. The creature appeared in the 2011 film The Thing and was portrayed by actor Joel Edgerton.

What happened to Kate in the thing?

She was effectively left alive. Sure in the OG script, as written above, she died of exposure. but they changed that (even in the ending with the pilot it was different) She took a cat there but the thing also took a cat there. So she burns up the one (not exploding it) and then she has the other one.

Does anyone survive the thing 2011?

Lars: Survives the events of the film. The morning after the events he is met by Matias, and the two chase after the dog-Thing. Intended to be the character at the beginning of the 1982 film who is shot by Garry; he can be recognized by the beard and the special goggles with the slits.