Real Name: Unknown
Other Aliases: None.
Birthplace: USA (city unknown).
Relationship Status: Single.
Known Relatives: None.
Group Affiliation: None; Arkham City Sirens (ally).
Base of Operations: Newhaven.
Known Powers: Silhouette is a known nova, whose metagene allows her to become a shadow on any surface. While in this form, other shadows are effectively solid, which she cannot pass through.