Dr. Gizmo is a villainous gadgeteer known only by his somewhat unfortunate name.
References: [Supermansion] [2015 – 2019] [Season 1, Episode 1, Groaner’s Wild!: ref to as villain gadgeteer who outfits other villains; ref to his creation: the leprecats; AKA “Dr Jizzmo”, erroneous name for Dr Gizmo; ]