Who is Aang’s earthbending teacher in "Avatar: The Last Airbender"?

Toph

Who provided the voice for Pikachu in "Pokémon Detective Pikachu" (2019)? What musical artist recorded and popularized the song 'Rockin' Around the Christmas Tree'? What battle in AD 378 saw the Goths defeat the Roman Emperor Valens? The Nobel Prize was first awarded in which year? Which villain controls minds, and appeared against Jessica Jones in comics and TV?