Trivia

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

When she promoted the final season of How I Met Your Mother (2005) on The Talk (2010), she became teary when asked what she would miss the most about co-star Jason Segel and was unable to answer the question. They played husband and wife during nine seasons.

Her favorite episode of Buffy the Vampire Slayer (1997) is Hush (1999).

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.

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.

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.

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

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.

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).

Good friends with Buffy the Vampire Slayer (1997) co-star Sarah Michelle Gellar and Emma Caulfield Ford.

Is Godmother of Joss Whedon's son, Arden, and her husband, Alexis Denisof, is his Godfather.

Is very good friends with singer P!nk who named her daughter Willow. Hannigan praised her name choice on Twitter.

Attended California State University in Northridge, California majored in Psychology

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

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

Was a clarinet player in junior high school.

Her father has Irish ancestry. Her maternal grandparents, Jacob Posner and Dorothy Mendel, were born to Russian Jewish immigrant families.

Forbes Magazine calculated her total earning for 2013 to be $8 million. Most of her income was based on her per-episode take at $300,000 for How I Met Your Mother (2005) plus syndication for re-runs of the show.

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.

Owns a mansion in Sacramento, California.

Has a tattoo of tribal dolphins on her ankle, a Japanese kanji (for luck and happiness) on her back, and a cartoon turtle on her left foot.

Alyson's parents divorced when she was 2. Her mother is a real estate agent in Atlanta, Georgia, and her father was a truck driver in Missouri.

She was invited to join the cast of the TV show In the Game (2004), 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.

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)

Played soccer until she got an injury in her early teens.

Returned to work 2 months after giving birth to her daughter Keeva in order to begin filming the 8th season of How I Met Your Mother (2005).

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.

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.

She supports the StubHub's Mom's Night Out program. This program celebrates mothers and works with the Adopt-A-Classroom program.

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

She is related to the drummer of Marilyn Manson, Ginger Fish (aka Kenny Wilson), and also to actor Steven Sutphen.

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

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

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

Graduated from North Hollywood High School in 1992.

She is in London starring in the West End stage adaptation of Nora Ephron's When Harry Met Sally... (1989) , co-starring Luke Perry, which will run in the springtime. Afterwards, she is tentatively set to begin production on her new CBS television series. (March 2004)

At age 11 moved from Atlanta, Georgia, to Los Angeles

Member of Alpha Chi Omega sorority.

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).

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