Jolene Blalock is an American actress best known for playing Sub-Commander T'Pol, a Vulcan in Star Trek: Enterprise, which tells the adventure of a newly commissioned spaceship's maiden voyages into the depths of space. Her highest profile role before starring in Star Trek was playing Medea, the mythic princess and sorceress of the Isle of Colchis in 2000 adaptation of Jason and the Argonauts.

Jolene Blalock was born on March 5, 1975 in San Diego, California. Although Jolene proved to be a born surfer while growing up in California, she decided to pursue an acting career. Jolene's father would take her and her brothers to surf, which latter turned out to be their regular family sport. Jason Blalock made her acting debut on television's Veronica's Closet. In 2001, the actress appeared in the television miniseries drama Diamond Hunters. Jolene Blalock left home at the age of 17 to start a career in modeling. Jolene has appeared on the cover of men's lifestyle magazines. She has posed for a clothed fashion layout in Playboy in April 2002. On April 30, 2003 she married Michael Rapino, the CEO of Live Nation. In March and April 2006, Blalock filmed Dream Me a Murder, a made-for-cable film, in the Calgary, Alberta area. She also appears in the upcoming film Slow Burn with LL Cool J and Ray Liotta (filmed in 2003 and showed at the Toronto Film Festival in September 2005, and tentatively scheduled for release in 2006). She has appeared in a guest starring role in two episodes of Stargate SG-1.

Jolene Blalock is also scheduled to appear on an episode of Lost during the 2005-2006 seasons, and it has been declared that she will co-star in an upcoming horror film entitled Shadow Puppets.