Evil Shirley

Evil Shirley (played by Shirley Jones) was the main villain in the episode of Deadly Games titled One Mean Mother. Gus Lloyd created her as an ice-manipulating witch, basing her on his ex-mother-in-law, Shirley Ashborne.

Personality
Evil Shirley has an obsession with cleanliness that resembles that of her inspiration. She feigns politeness but lacks genuine emotions. She thinks nothing of murdering anyone who gets in her way.

Appearance
Evil Shirley frequently wears yellow. When enacting the first part of her scheme, she wears a yellow pantsuit. She later exchanges this for a yellow striped nautical blouse.

Powers & Abilities
Evil Shirley could freeze people and objects with a touch. At a longer range, she could throw "ice bolts" that have a similar, albeit weaker effect. While her touch can instantly kill, her ice bolts leave the victims with about five minutes to thaw out.

Weaknesses
As a "neat freak," Evil Shirley's weakness is dirt. Any dirt that touches her has an effect like acid. To kill her, one has to drop some kind of house on her.

Biography
Gus and Peter implied that Evil Shirley entered their world at the same time as Jackal and Killshot. When Gus and Lauren destroyed Killshot, Evil Shirley became the next villain to try to kill them.

Evil Shirley's directive was to blow up a cruise ship. To that end, she obtained information on cruise lines from Vic Shelton, killing Shelton afterwards. She then obtained a pound of plastic explosive from a police locker after killing the guard, Sergeant Francis Cooper.

She boarded Maxwell Cruise Lines and planted two bombs—one below decks in the boiler room, another in the kitchen. Once aboard, she killed the cruise director so that the Jackal could take his place. Gus and Lauren found one of her bombs, but the Jackal was able to frame them as the bombers and have them taken ashore.

Evil Shirley then left the ship and attempted to detonate the other bomb. Before she could, Gus escaped custody and destroyed her by driving a motorboat into her.