Caliburn is a talking sword used by Sonic the Hedgehog during major part of Sonic and the Black Knight (Wii, 2009). His voice in Japanese is by Hiroaki Hirata and Casey Robertson in the English version. In the English version he is a friendly true knight, and in the beginning he becomes angry with Sonic's easy attitude. He is also demonstrated as a strict teacher, he calls Sonic silly when he disapproves.
-Sonic starts to use Caliburn at the end of the second mission.
-Caliburn was designed by Takashi Lizuka.