Yarael Poof is a Quermian Jedi Master on the High Council in The Phantom Menace (1999), performed by Michelle Taylor. The Quermian neck is the most extreme piece of alien design in the chamber, and it is the whole of his screen presence: he does not speak, and he is gone by Attack of the Clones, where Coleman Trebor occupies the seat.
Legends filled the gap with an off-screen death; canon has not. He is a useful reminder of how much of the prequel Council was costume design rather than character, and of how the Expanded Universe made its living by answering questions the films never asked.
Catalogue entry. This figure has a verified record here rather than a full write-up — the encyclopedia labels its own depth instead of padding it.