|Relations||Camille Mann (cousin), Tennyson Family (in-laws)|
|Group Affiliation(s)||Tennyson Family|
|Hair Color||Blond (human form)|
|Gallery | Quotes | Appearances | Merchandise|
Lucy first appeared during the episode, "Big Fat Alien Wedding". She is Camille Mann's cousin, and comes to her wedding to perform as the flower girl at the wedding this disappointed Gwen Tennyson, since she was going to be the flower girl originally. Like Camille and Camille's parents, she is also a Sludgepuppy, but this wasn't shown until the end of the episode, when Ben Tennyson trips on Lucy's "feet" when they were dancing at the wedding.
- She is at this moment, Ben and Gwen's second (or third) cousin.