Pengi's a member of They Might Be Heroes. I've got an alt in the Silver Guard, which is coalitioned with 'em. In the past couple months, I've actually seen a fair bit of him. I didn't screenshot it either, but Pengi recently won a costume contest at a coalition event:-
I am...IRON PENGUIN.
-- Acyl
I am...IRON PENGUIN.
-- Acyl