Alavin

Alavin is a frieza-race warrior. He started out as a hero in episode 13, challenging Utmost Wicked to a battle, before having his entire body disintegrated in a powerful, CE-influenced blast. Despite being just a head lying around in the grass, Alavin was still able to provide energy to Gohan's first Blanco-Dama in order to defeat Utmost Wicked.

Alavin quickly became an anti-hero in episode 14 when he learned that Gohan and Shaggy didn't use their 2nd wish to restore his body, attacking them both in a fit of rage before being destroyed by his own self-destruction, in hopes of ending both Shaggy's and Gohan's lives at point-blank, but to no avail. Alavin is later seen near the end of episode 14 in hell, having a conversation with Scooby Doo about Shohan powering up as they both watched him through crystal ball.

Alavin is somewhat of a "living Thesaurus" as he often uses big, complex words as unnecessarily as possible during conversations.