A popular model, Blalock has appeared on the cover of many men's lifestyle magazines and is twice featured in Maxim's Girls of Maxim gallery. She posed for a clothed fashion layout in Playboy in April 2002. She was later interviewed by the magazine for its "20Q" section in February 2005.
Blalock's 30th birthday on March 5, 2005, coincided with the filming of her final scenes as T'Pol. During the spring of 2005, she was quoted in a Toronto Star interview and at her Pasadena convention appearance as calling the Enterprise finale episode, "These Are the Voyages..." "appalling" although the reasons for this opinion were not initially reported. In a later interview, Blalock expanded upon this by saying that she was upset that the final episode focuses more upon characters from Star Trek: The Next Generation than Enterprise.
Blalock initially expressed reluctance to participate in Star Trek conventions, but made a first appearance at a convention in Pasadena, California in March 2005. Her second appearance was at an autograph signing show in Milton Keynes, England in late April which was soon followed by an appearance at a convention in Bonn, Germany and others. A self-confessed "Trekkie" and big fan of Star Trek: The Original Series, she was openly critical of Enterprise during its third and fourth seasons. She has stated that she felt that the show was creatively lacking, and that the show's producers were out of touch with Trek fans, although she called the fourth season a distinct improvement over what came before.
Blalock was a scheduled speaker at the 2006 Las Vegas Star Trek Convention but failed to meet her commitment due to a bout of late-night drinking at the Hilton Hotel venue the evening before, as observed and reported by many fans. She did briefly appear for scheduled fan photos before her scheduled talk, but left early due to illness resulting from her earlier nocturnal activities. Convention organizers reported that she had been taken to a hospital.
In March and April 2006, Blalock filmed Dream Me a Murder, a made-for-cable film, in the vicinity of Calgary.
She appears in the upcoming film Slow Burn with LL Cool J and Ray Liotta (filmed in 2003 and unveiled at the Toronto International Film Festival in September 2005, and tentatively scheduled for release in 2006), and appeared in a guest starring role in two episodes of Stargate SG-1 as Ishta, leader of a group of female Jaffa. She is also scheduled to appear on an episode of Lost during the 2005-2006 season, and it has been announced that she will co-star in an upcoming horror film entitled Shadow Puppets.