[3] Gadget Boy's bionic implants were installed by Switzerland-based inventor Myron Dabble (voiced by Maurice LaMarche) who has an unrequited crush on Heather.

He is also assisted by a robotic dog named G-9 (also LaMarche), who serves as the "Brain" of this series, which shows through his morphing capabilities to get the gang out of the stickiest situations.

Spydra is accompanied by Boris, a frequently abused, wisecracking, sarcastic vulture with a Russian accent, along with her twin henchmen Mulch and Houmous; they are all played by Maurice LaMarche.

On May 28, 2003, Sterling Entertainment released a DVD/VHS titled "Gadget Boy Saves the World", containing four episodes (three on the VHS) of the series.

On February 21, 2012, Mill Creek Entertainment released Gadget Boy's Adventures in History - The Complete Series on DVD in Region 1 for the very first time.