Professor Samuel Oak, known as Dr. Yukinari Ohkido in Japan, is a fictional character in the Pokémon franchise that debuted in 1996 video game Pokémon Red and Green.
Add actors/actresses and cast the roles/films/series that they were rumored, considered, offered, negotiated, auditioned, turned down, and/or originally casted before getting recasted. (Please double-check in research.)
