Jenny is both Maid and loyal companion to Madame Vastra. Having been put on the right track by Vastra, Jenny jumped at the chance to aid her in her quest to rid the streets of London of evil. Though inexperienced in combat, she is a fast leaner, and eager to please.

"She's definitely a girl" - Madame Vastra
"Oh, stop it!" - Jenny

Young, impressionable, but far from innocent, Jenny is Vastra's greatest asset. Whether it be backup, bait, or someone to make the tea, Jenny is there in a heartbeat.