Sasha Alexander (born Suzana Drobnjakovic on May 17, 1973), is an American actress and TV director. She played Gretchen Witter in Dawson's Creek and has acted in films including Yes Man (2008) and He's Just Not That Into You (2009). Alexander played Caitlin Todd for the first two seasons of NCIS (2003–2005). From July 2010 through September 2016, Alexander starred as Maura Isles in the TNT series Rizzoli & Isles and was a regular in Season 5 and 6 of Shameless in 2015-2016. Early life Alexander, who is of Serbian descent, was born Suzana Drobnjakovic in Los Angeles, California. She began acting in school productions in the seventh grade. She was also an ice skater, but stopped due to a knee injury. She continued acting through high school and college, then moved to New York City to act in summer stock and Shakespeare festivals. She graduated from the University of Southern California's School of Cinema-Television, where she was a member of the sorority Kappa Alpha Theta. Career Alexander got her acting start on two short-lived series: the medical drama Presidio Med and ABC's twenty-something drama Wasteland. She achieved widespread media attention and critical praise when she appeared in the fourth season of Dawson's Creek as Gretchen Witter, the sister of Pacey Witter, and dated the title character. Alexander was also in an episode of the short-lived Fox comedy series Greg the Bunny, in which she played the role of a lesbian TV Guide reporter and shared an onscreen kiss with Sarah Silverman. Alexander appeared in the films Lucky 13 and All Over the Guy, as well as He's Just Not That Into You (in the role of Catherine), the independent movie The Last Lullaby, and Yes Man (as Lucy) starring Jim Carrey. She appeared as District Attorney Robin Childs in the CSI episode "Alter Boys", and she appeared in an episode of Friends ("The One with Joey's Interview"), playing a Soap Opera Digest reporter who interviewed Joey. Alexander joined NCIS as Secret Service/NCIS Special Agent Caitlin "Kate" Todd in 2003. Her character replaced Vivian Blackadder, played by Robyn Lively, who had appeared in the backdoor pilot episodes "Ice Queen" and "Meltdown" on JAG. The official pilot episode "Yankee White" aired September 23, 2003, on CBS. Alexander's two year tenure on the show ended in May 2005 when her character, Kate, is killed by a terrorist who shoots her in the