Lydia is a witch who appears in Experiment 806 The Undead. In the film, she tempts the virtuous knight whom she desires and she has the ability to turn into a bat.

Lydia (played by Bridget Jones) also visits the SOL, where her powers are a bit more erratic. She turns (briefly) into a cat, a crow, a bat, a signed football, an inflatable penguin, a very confused Pearl Forrester (which scared Crow), and a bottle of bleach. Each time, she expresses confusion and frustration at the range of her sudden changes, having "never been a football before", and being "a little bit rusty". Once she becomes a bottle of bleach, she gets stuck and can't change back.

Lydia, as the bleach, is still sitting on the bridge when Movie Sign occurs. What becomes of her is unknown.

The Satellite of Love
Primary Residents Joel RobinsonMike NelsonJonah HestonTom ServoCrow T. RobotGypsyCambotMagic Voice
Minor/Other Residents TimmyMike's RobotClayton Forrester and TV's Frank (mirror)Eddie Nelson (Alternate universe)NanitesWinstonM. WaverlyMatt Claude Van DammeGrowler
Visitors NuveenaEnochDemon DogsMonadPhantom of KrankorOrtegaGypsy (mirror)Tom Servo (mirror)Henry KissingerGoosioMikey the Mike spriteGlenn ManningEarl TorgesonFinneganLydiaDelivery ManBrain Guy
Terminology Hexfield ViewscreenRocket Number 9UmbilicusMovie signManipulator armsDeus ex MachinaHyper-warp escape shipsAirlockWhirlpoolJet ScreenThe Tube
Locations BridgeTheaterTheater hallwayMike's roomTom's roomCrow's RoomJoel's roomKitchen