Origin Unknown
Weapons & Accessories
Weapons None
Voice Actor
Voiced by Bob McFadden
Character Guide
Page List of all characters

Screwloose is a robot who is an expert Gyroscope engineer. He has a metallic golden body and wears a bright red bow tie. This gentle and mild-mannered animatron, considers robots to be inferior creations. Thus he prefers to be referred to as "Self Acting Phenomenon" or "SAP" for short.

While his true origins are unknown, he operated on the planet Druski during the Velt Wars and was later promoted to the space station Norton. He was responsible for single-handedly putting down the Norton uprising. He possesses a one of a kind "logic condenser" for a brain. This makes him the most advanced gyro-engineer in all the universe.

Despite his superior intellect and skills, his body has deteriorated to a rather bad state. Due to many budget cuts, there has been no money to upgrade his mechanisms.

The ThunderCats seek out the help of Screwloose when the Mighty Gyroscope on New Thundera develops some fault and starts wobbling, resulting in massive tremors all over New Thundera.

ThunderCats Bullet Point.png Appearances[edit | edit source]

ThunderCats 1980s
Good Characters Lion-O | Tygra | Panthro | Cheetara | Wilykit | Wilykat | Bengali | Pumyra | Lynx-O | Jaga | Claudus | Thunderian Guard | Jagara | Torr | Snarf | Snarfer | Berbils | Willa | Nayda | Snowman | Turmagar the Tuska | Dr. Dometone | Mandora | Hachiman | Quick-Pick | Wizz-Ra | Captain Bragg | Screwloose | Mumm-Rana | King Arthur | Merlin | Maftet | Micrits | Under-earthmen | Brodo | Sondora | Kudi | Char | Ecology Inspector | Terrator | Wollos | Bolkins | Brutemen | Cavemen | Molemen | Gomplin | Giants | Scooper Jaga Nav2.png
Characters Good Characters | Evil Characters | Creatures
ThunderCats Episode Guide | Characters | Locations | Weapons | Vehicles | Cast and Crew | VHS & DVDs | Literature | Merchandise

Shows ThunderCats 1980s | ThunderCats 2011 | SilverHawks | TigerSharks
Community content is available under CC-BY-SA unless otherwise noted.