The most anticipated series of the winter premieres Friday night.

Dollhouse stars Eliza Dushku as Echo, an "Active" that receives new personalities and abilities in order to go undercover on a variety of missions.

While this is the main star and focus of the show, Echo certainly isn't the only member of the Dollhouse. Here's a rundown of the show's other key characters:

• Topher Brink: The geeky brains behind the Dollhouse's technology.
• Paul Ballard: An FBI agent obsessed with the Dollhouse's secrets.
• Adelle DeWitt: The head of the Dollhouse.
• Boyd Langton: The Handler assigned to Echo.
• Sierra: A fellow Active.
• Claire Saunders: The Dollhouse's resident physician.
• Laurence Dominic: Head of security.

Click on the photos below for closer looks at each character:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.