|角色：||九之七, 八之三 and 三之二|
|File:Seven of nine.jpg|
Far from being a fan of science fiction, Ryan nearly turned down the role of 九之七. She reportedly had to be convinced by the producers that the role would not simply be "an intergalactic Barbie".   According to Ryan, the "skintight catsuit" she had to wear as Seven was initially so tight that she blacked out four times until the problem was fixed.  
According to some sources, she would have appeared as Seven of Nine in 星际旅行：复仇女神, were it not for a scheduling conflict with her role in the television series Boston Public. The cameo went to her Voyager castmate Kate Mulgrew instead.  Ryan also expressed interest in appearing as an ancestor of Seven on Voyager's successor series, 星际旅行：进取号, but only if her schedule allowed it and if it was written by Brannon Braga, her boyfriend at the time.  
Ryan was born Jeri Lynn Zimmerman in Munich, Germany. Her father, for whom she was named, was in the US Army, so for the first few years of her life Ryan grew up on numerous military bases in Germany and the US. Her family finally settled down in Paducah, Kentucky when she was 11.
She graduated from Lone Oak High School in 1986, then went on to Northwestern University in Chicago, Illinois where she obtained a degree in theatre. While at Northwestern, Ryan entered and won several beauty pageants as a way to help pay for her classes. In 1990 she won fourth place in the Miss America Pageant where she was Miss Illinois.
On June 15th, 1991 she married Jack Ryan, with whom she had a son, Alex, in 1994. They divorced in 1999. In 2004, Jack was a Republican candidate for US Senator from Illinois. He withdrew from the race when their divorce papers were made public, despite both of their efforts to keep them sealed in order to protect their son.
Following her divorce from Ryan, Ryan became romantically involved with Voyager executive producer Brannon Braga. The two lived together with Ryan's son, but their relationship has since ended.  On 8 February 2005, Ryan and her current husband, French Chef Christophe Emé, opened a restaurant called "Ortolan" which is located on West 3rd Street in Los Angeles, California. Ryan announced that she and Emé were engaged to be married in July 2006, and they married on 16 June the following year.  
Outside of Star Trek, Ryan has made several appearances in film and television. Throughout the 90s, she starred in several made-for-TV movies, including 1993's In the Line of Duty: Ambush in Waco. This movie co-starred other Trek alumni such as Neal McDonough, Susanna Thompson, Gordon Clapp, Glenn Morshower, and Jeff Allin.
Ryan was also the star of two independent feature film - Men Cry Bullets in 1997 and The Last Man in 2000. She also had a small but very memorable role in the film Wes Craven Presents: Dracula 2000. This film also starred Christopher Plummer from Star Trek VI: The Undiscovered Country. In 2004, Ryan made an appearance in the romantic comedy Down with Love, co-starring Warren Munson, Michael Ensign, and Jude Ciccolella.
Ryan also made guest appearances on such TV shows as Who's the Boss?, Matlock, Murder, She Wrote (in an episode with Lee Meriwether and Eric Pierpoint), Melrose Place, and Two and a Half Men. She also appeared in a 1991 episode of The Flash along with Star Trek: The Next Generation actress Denise Crosby, TNG and Deep Space Nine guest actor Dick Miller, and Voyager guest actor Ian Abercrombie.
Before joining the cast of Star Trek: Voyager in 1997, Ryan was a cast member of another science fiction series, Dark Skies. However, the series, which only lasted one season, ended soon after she came aboard.
After Voyager came to an end in 2001, Ryan joined the cast of the FOX drama Boston Public, created by David E. Kelley, playing high school teacher Ronnie Cooke. The series ended in 2004. However, in 2006, Ryan appeared in the two-hour second season finale of Kelley's newest series, Boston Legal, co-starring with William Shatner and Rene Auberjonois. Robert Foxworth also guest-starred in the episode.
Ryan recently had a recurring role on the hit series The O.C., beginning with the episode "The Aftermath" which aired on September 8th, 2005 – the same day Star Trek: The Original Series began airing 39 years earlier. On May 9, 2006, she was seen in the audience of FOX TV's American Idol. It was also on this day that the promo for her episode of Boston Legal first aired on ABC.