Jolene Blalock Measurements: Height and Weight

Jolene Blalock is reported to be around 5 ft 7 in (170 cm) tall with a slim, athletic build, as of 2026. She was born on March 5, 1975, which makes her 51.

No official weight has been published. She has largely let her work do the talking, so this guide covers height and general build and nothing more.

Quick facts

Height and build

Blalock’s listed height of about 5 ft 7 in puts her above average, and her posture and poise suited the composed Vulcan she played. Her build is usually described as slim and athletic, in line with the physical demands of long television shoots that mixed action sequences with elaborate costuming.

From San Diego to the Starship

Blalock was born in San Diego and grew up in California. She started in smaller film and television roles in the late 1990s before auditioning for what became her signature part. In 2001 she was cast as T’Pol, the Vulcan science officer on Star Trek: Enterprise, a prequel series that aired on UPN from 2001 to 2005.

T’Pol was an unusual lead for the franchise: a Vulcan serving aboard a human-crewed ship and wrestling with the suppressed emotions typical of her species. Blalock played her with dry restraint, and the character became one of the show’s anchors.

Roles after Star Trek

After Enterprise wrapped, Blalock moved into independent features and television guest work, mostly in genre projects. None of those roles matched the visibility of T’Pol, which remains the part fans associate with her, and she has remained a regular guest at science-fiction conventions where Trek fans still queue to meet her.

Public image and activism

Blalock has taken part in animal-welfare campaigns and has spoken about her love of animals and the outdoors. She also appeared in magazine shoots in her earlier career, but her professional identity is mainly built on science-fiction television.

Personal life

She keeps most of her private life to herself, giving interviews that focus mostly on her projects and causes.

T’Pol, the Vulcan on a human ship

Star Trek: Enterprise premiered in September 2001 and was set roughly a century before Captain Kirk’s era, with Scott Bakula as Captain Jonathan Archer. T’Pol was assigned to the ship as a Vulcan science officer and observer, and much of her arc involved a cautious, sometimes prickly friendship with the human crew. Blalock played her with a still, precise manner, a flat vocal delivery and a lifted eyebrow that fans learned to read as emotion. The show ran four seasons and ended in 2005, and T’Pol stayed a central figure throughout, growing from skeptical outsider into a trusted friend of Archer and the crew.

The role put Blalock into a long tradition of Vulcan characters, from Spock onward, and she’s often cited as one of the franchise’s more memorable takes on the species. Playing a character whose defining trait is suppressed feeling is a tricky assignment. Go too cold and the audience tunes out. Blalock found small, telling gaps in the restraint, and those moments are what Trek fans tend to remember.

Why the casting stood out

Vulcans on screen had mostly been men until then, with a handful of exceptions, so a female Vulcan lead on a flagship series was a notable shift. The writers used T’Pol to explore the franchise’s familiar theme of logic against emotion from a slightly different angle, including how a Vulcan might react when thrown in with a messy, curious human crew far from home. Her scenes with Archer and with the ship’s chief engineer, Trip Tucker, played by Connor Trinneer, became some of the show’s emotional through-lines.

Life in the convention circuit

Trek is a franchise that rewards its stars with decades of fan loyalty, and Blalock is a familiar guest at conventions, where she signs autographs and takes part in panels with castmates. Fans there often ask about the show’s finale, which divided opinion, and about what it was like to wear the character’s costume and make-up. Those stories have become a small part of her public persona.

What fans ask

Readers often wonder how tall she is compared with Bakula and the rest of the cast, and whether the Vulcan look took long to put on. On the first, the answer is that Blalock’s listed height is above average for a woman, so she did not look out of place beside her co-stars. On the second, Trek make-up work is known to be time-consuming, though specifics vary by character. As for her current work, she has continued to take on selective projects rather than chase a single return to network television.

Frequently asked questions