Alyson Hannigan

Portrays the girlfriend of Seth Green's character in two different occasions. First was in the movie My Stepmother Is an Alien and then later in "Buffy the Vampire Slayer" .

Portrays the girlfriend of Seth Green's character in two different occasions. First was in the movie My Stepmother Is an Alien (1988) and then later in "Buffy the Vampire Slayer" (1997).

She has been good friends with Seth Green since they met while filming My Stepmother Is an Alien (1988).

She co-starred in the television series "Free Spirit" . The program was about a witch. Interestingly, she has now played a witch on the TV series, "Buffy the Vampire Slayer" .

She co-starred in the television series "Free Spirit" (1989). The program was about a witch. Interestingly, she has now played a witch on the TV series, "Buffy the Vampire Slayer" (1997).

Graduated from North Hollywood High School in 1992.

Her character on "Buffy the Vampire Slayer" , Willow Rosenberg, once mentions that she wrote "Doogie Howser, M.D." fan-fiction as a girl. Hannigan went on to star in "How I Met Your Mother" with Neil Patrick Harris, who as a boy played Doogie Howser.

Good friends with "Buffy the Vampire Slayer" co-star Sarah Michelle Gellar.

Her character on "Buffy the Vampire Slayer" (1997), Willow Rosenberg, once mentions that she wrote "Doogie Howser, M.D." (1989) fan-fiction as a girl. Hannigan went on to star in "How I Met Your Mother" (2005) with Neil Patrick Harris, who as a boy played Doogie Howser.

While working on "Buffy the Vampire Slayer" (1997), she made $60,000 per episode in the series' 7th season.

Her favorite episode of "Buffy the Vampire Slayer" (1997) is "Buffy the Vampire Slayer: Hush (#4.10)" (1999).

Good friends with "Buffy the Vampire Slayer" (1997) co-star Sarah Michelle Gellar.

She made an estimated $8,700,000 in earnings from her work on the series. "Buffy the Vampire Slayer" (1997).

She introduced Joss Whedon to the music of the band Nerf Herder. This led to Nerf Herder getting the job for the "Buffy the Vampire Slayer" (1997) theme song.

Has had two songs recorded about her: "Alyson Hannigan" by Juvenile Wreck, and "This One Time" (named for her famous "This one time, at band camp..." quotes from American Pie ) by The Malcolm Effect.

The producers of American Pie originally wanted her to play the role of Heather, but she wanted to play the role of Michelle because she thought it was funnier.

The producers of American Pie (1999) originally wanted her to play the role of Heather, but she wanted to play the role of Michelle because she thought it was funnier.

Has had two songs recorded about her: "Alyson Hannigan" by Juvenile Wreck, and "This One Time" (named for her famous "This one time, at band camp..." quotes from American Pie (1999)) by The Malcolm Effect.

She (along with actresses Tangi Miller and Holly Marie Combs) is a spokesperson for breast cancer, and will appear in a new four page brochure (to be featured in Vogue, Glamour, Self, Mademoiselle, and Women's Sports and Fitness) to raise awareness about the disease.

She (along with actresses Tangi Miller and Holly Marie Combs) is a spokesperson for breast cancer, and will appear in a new four page brochure (to be featured in Vogue, Glamour, Self, Mademoiselle, and Women's Sports and Fitness) to raise awareness about the disease. [May 2000]

Married to Alexis Denisof. Denisof proposed during a trip to Northern California wine country during the 2002 holiday season. They were married in October 2003

Her wedding was featured in the February 2004 issue of InStyle Magazine.

She was invited to join the cast of the TV show In the Game (2004) (TV), but backed off, citing creative differences. Hannigan was supposed to play the best friend of the character played by Jennifer Love Hewitt, but according to a Knight Ridder/Tribune News Service interview reported January 25, 2005, she was unhappy with the diminished, trivialized role they presented her with. She chose to walk away from the offer.

Babysat for Bob Saget's children in her teens. Once went on vacation to Hawaii with his family. Two decades later, they co-starred together in "How I Met Your Mother" , with Saget playing (the voice of) the older "Ted Mosby" and Hannigan playing younger Ted's best friend's fiancée.

She was invited to join the cast of the TV show In the Game (TV), but begged off, citing creative differences. Hannigan was supposed to play the best friend of the character played by Jennifer Love Hewitt, but according to a Knight Ridder/Tribune News Service interview reported January 25, 2005, she was unhappy with the diminished, trivialized role they presented her with. She chose to walk away from the offer.

Was 8 months pregnant with her daughter Satyana when she completed filming the 4th series of "How I Met Your Mother" (2005).

Returned to work 4 months after giving birth to her daughter Satyana to begin filming the 5th series of "How I Met Your Mother" (2005).

Babysat for Bob Saget's children in her teens. Once went on vacation to Hawaii with his family. Two decades later, they co-starred together in "How I Met Your Mother" (2005), with Saget playing (the voice of) the older "Ted Mosby" and Hannigan playing younger Ted's best friend's fiancée.

Friends with "How I Met Your Mother" (2005) co-star Neil Patrick Harris.

Was 7 months pregnant with her daughter Keeva when she completed filming the 7th series of "How I Met Your Mother" (2005).

Announced that she is expecting her first child, due Spring 2009. .

Gave birth to her daughter, Satyana Denisof, on her birthday of March 24, 2009 in Los Angeles.

Gave birth to her 1st child at age 35, a daughter Satyana Marie Denisof, on March 24, 2009. Child's father is her husband, Alexis Denisof.

Voted #42 on Ask men's top 99 'most desirable' women of 2012.

Gave birth to her 2nd child at age 38, a daughter Keeva Jane Denisof, on May 23, 2012. Child's father is her husband, Alexis Denisof.