If I remember well, he was only mentioned in the movie.
He did appear in a more explicit manner in the Gameboy Advance videogame for the movie.
I couldn't find a screenshot in English, and I don't have the game or the time on me to take a new one, but there it is. The text goes like:
"Obi Wan learns to hide [probably a translation error?] his identity past death, with the help of..."