AceShowbiz - Sarah Michelle Gellar fans will be seeing double when the actress returns to TV this year - she has signed up to play twins in an edgy new show. The former "Buffy the Vampire Slayer" star has stepped out of the spotlight over the last few years, taking a break to look after her daughter Charlotte, her first child with husband Freddie Prinze, Jr., who was born in 2009.

Gellar is now set to make her small screen return in her first major TV role since her time on the vampire show came to an end back in 2003. She will take on two roles in new thriller The Ringer, playing estranged twins with very different personalities.

The show's producer, Peter Traugott, tells EW.com, "It's an edgy thriller about redemption and about revenge. There's a point of view of two twin sisters who grew apart over a tragedy in their past. And one now seeks redemption and the other one seeks revenge. The sister who is seeking redemption has had a much more troubled life."

"When her fancy pants sister disappears, she takes over her life. She's living the life of her more successful sister only to come to find out that her life is equally as fraught with danger and complication. Her sister dies in a boating accident. The other sister takes on her persona, only to come to find out that they have a hit out on her."

Gellar will play both parts, with one sister appearing mostly in flashbacks.