|This article is about a/an voice actor in the Metal Hero Series.|
Bob Papenbrook (September 18, 1955 - March-17, 2006) voiced several monsters in the American adaptations of the Metal Hero Series.
- VR Troopers - Spitbot, Footbot, Vanbot, Serpentoid (voices)
- Big Bad Beetleborgs - Amphead, Shadowborg, Hammerhands (voices), Borgslayer (shared voice role with Dave Mallow)
- Beetleborgs Metallix - Aqualungs, Scorpix (voices)