The name of Cheryl's relative, Cousin Fester Blossom (Alexander Lowe), may be a nod to Uncle Fester of the ghoulish Addams Family of TV/movies/cartoons. The Blossom family, like the Addams Family, has proven to have a penchant for the Gothic and macabre.
The actress that plays Dodger's mother and the actor who plays Dodger are the same age in reality.