Suzana S. Drobnjaković, known by her stage name Sasha Alexander, is an American actress from Los Angeles, California.
She is of ethnic Serb descent. She played the role of Gretchen Witter on Dawson's Creek and has acted in feature films including Yes Man and He's Just Not That Into You. Alexander played former Secret Service/NCIS Special Agent Kate Todd for the first two seasons of NCIS. Since July 2010 Alexander has starred as Maura Isles in the TNT series Rizzoli & Isles. Sasha can also be seen playing the role of Helene Runyon on the Showtime TV series Shameless.