Jeri Lynn Ryan (born Jeri Lynn Zimmermann; February 22, 1968) is an American actress best known for her role as the liberated Borg, Seven of Nine, on Star Trek: Voyager, for which she won two Saturn Awards.She is also known for her role as Veronica "Ronnie" Cooke on Boston Public (2001–04). She was a regular on the science fiction series Dark Skies (1997) and the legal drama series Shark (2006–08). From 2011 to 2013, she starred as Dr.