Charles Deetz' daughter and the step-daughter of Delia Deetz. Is a friend of Adam and Barbara Maitland.Lydia Deetz is the
- In the Beetlejuice (TV series) Lydia is the step-daughter of Delia Deetz, also in Beetlejuice film, is Delia's step-daughter.
- Lydia is very similar to Elsa Van Helsing, also is portrayed by Winona Ryder.
- Lydia and Elsa are goth.
- Lydia is grade in Science is C, but in Math is A.
- Lydia also is similar to Edward Scissorhands.
- Lydia and Edward are both goth, polite, serious and mature.