Mal Duncan is the long-time partner and husband of Bumblebee, as well as a young super-hero who has used several aliases, including Guardian, Herald, Hornblower and Vox. Despite having no powers of his own, he uses the Gabriel Horn to open portals and generate sonic blasts as Herald, and as Guardian he uses the Guardian's Shield as his main weapon. He has been a member of the Teen Titans and the Doom Patrol.
Mal Duncan was created by Robert Kanigher and Nick Cardy, first appearing in Teen Titans #26 (1970).
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