Coming over like Blakes’ 7’s Servalan on steroids, Peacekeeper Commandant Mele-on Grayza has a commanding presence. Her high rank, (and her trick of turning men into mindless sex-slaves with pheromone-laden sweat) make her an adversary to be respected.

Intent on seeking a truce with the Scarrans, she saw Scorpius’ pursuit of wormhole technology as a futile obsession. With the two thrown into inevitable conflict, she usurped his authority and cancelled his project. Scorpius came off worst - being reduced to no more than her plaything.

She didn’t take too well to Crichton pointing Wynnona at her either, but what she wants from him isn’t clear. Is it revenge? Technology? Or something rather more…

Key episodes: Into the Lion's Den part 1, Into the Lion's Den part 2, What Was Lost part 1.

Read our actor profile of Rebecca Riggs.