At a book signing, October 2007
|Born||Danica Mae McKellar
January 3, 1975
La Jolla, California, U.S.
|Education||Bachelor of Science in Mathematics with honors (summa cum laude)|
|Occupation||Actress, author, mathematician, education advocate|
Danica Mae McKellar (born January 3, 1975) is an American actor, author, mathematician, and education advocate. She played Kevin Arnold's on-off girlfriend Winnie Cooper in the television series The Wonder Years, and later wrote four non-fiction books: Math Doesn't Suck, Kiss My Math, Hot X: Algebra Exposed and Girls Get Curves: Geometry Takes Shape, which encourage middle-school and high-school girls to have confidence and succeed in mathematics.
Danica and her sister Crystal McKellar both maintained professional acting careers as children, but with a strong emphasis on education as a priority. As a result, Crystal became a corporate lawyer, while Danica majored in mathematics. Danica and Crystal also have two half-brothers, Chris Junior and Connor McKellar.
The Wonder Years and early acting career 
At age 7, McKellar enrolled in weekend acting classes for children at the Lee Strasberg Institute in Los Angeles. In her teens, she landed a prominent role in The Wonder Years, an American television comedy-drama that ran for six seasons on ABC, from 1988 to 1993. She played Gwendolyn "Winnie" Cooper, the main love interest of Kevin Arnold (played by Fred Savage) on the show. Her first kiss was with Fred Savage in an episode of The Wonder Years.
She later said, "My first kiss was a pretty nerve-wracking experience! But we never kissed off screen, and pretty quickly our feelings turned into brother/sister, and stayed that way." Late-night talk show host Jimmy Fallon has said that the character of Winnie Cooper "is the coolest girl in any TV show ever." 
McKellar has said that she found it difficult to move from being a child actress to an adult actress." Since leaving The Wonder Years, McKellar has had several guest roles in television series (including one with former co-star Fred Savage on Working), and has written and directed two short films. She appeared in two Lifetime TV movies in the Moment of Truth series, playing Kristin Guthrie in 1994's Cradle of Conspiracy and Annie Mills Carman in 1996's Justice for Annie. She briefly returned to regular television with a recurring role in the 2002–03 season of The West Wing, portraying Elsie Snuffin, the stepsister and assistant of Deputy White House Communications Director Will Bailey.
In 1989, she appeared playing the cello at the beginning of the Debbie Gibson music video No More Rhyme.
McKellar appeared in lingerie in the July 2005 edition of Stuff magazine after readers voted her the 1990s star they would most like to see in lingerie. McKellar explained that she agreed to the shoot in part to obtain "grittier roles".
On the August 1, 2007, edition of the Don and Mike Show, a WJFK-FM radio program out of Washington, D.C., McKellar announced plans that the producers of How I Met Your Mother were planning to bring her back for a recurring role (she guest-starred on the show in late 2005 in "The Pineapple Incident" and again in early 2007 in "Third Wheel"). She also made an appearance on the show The Big Bang Theory, in the episode "The Psychic Vortex".
In 2008, she starred in Heatstroke, a Sci-Fi Channel original movie about searching for alien life on Earth and in 2009 she was one of the stars commenting on the occurrences of the new millennium in VH1's I Love the New Millennium and was the math correspondent for Brink, a program by the Science Channel about technology. In 2013, she played Ellen Plainview in Lifetime's reimagining of the 1956 Alfred Hitchcock film The Wrong Man.
McKellar has also found work as a voice actress. She is the voice of Miss Martian in Young Justice. She has also provided the voices for two characters in three video games: Jubilee in X-Men Legends (2004), and Invisible Woman in Marvel: Ultimate Alliance (2006) and Marvel: Ultimate Alliance 2 (2009).
In 2012, she starred in the Lifetime movie, Love at the Christmas Table with Dustin Milligan.
On March 4, 2014, she was announced to be joining season 18 of Dancing with the Stars. She paired with Valentin Chmerkovskiy. McKellar and Chmerkovskiy were eliminated on Week 8, finishing in 6th place.
She had a guest appearance in the Impractical Jokers season four episode six titled "The Blunder Years"
As an undergraduate, she coauthored a scientific paper with Professor Lincoln Chayes and fellow student Brandy Winn entitled "Percolation and Gibbs states multiplicity for ferromagnetic Ashkin–Teller models on ." Their results are termed the 'Chayes–McKellar–Winn theorem'.
Referring to the mathematical abilities of his student coauthors, Chayes was quoted in The New York Times as saying, "I thought that the two were really, really first-rate." McKellar's Erdős number is four and her Erdős–Bacon number is six.
She married composer Mike Verta on March 22, 2009, in La Jolla, California; the couple had dated since 2001. They had their first child, a son named Draco, in 2010, McKellar filed for divorce from Verta in June 2012, with the dissolution becoming final in February 2013.
On July 16, 2014, she was engaged to her boyfriend Scott Sveslosky, a partner in the Los Angeles legal firm Sheppard Mullin Richter and Hampton. On November 15, 2014, the two wed in Kaua'i, Hawai'i.
McKellar has authored several mathematics-related books primarily targeting adolescent readers interested in succeeding at the study of mathematics:
- McKellar, Danica; Mary Lynn Blasutta (2008). Math Doesn't Suck: How to Survive Middle School Math without Losing Your Mind or Breaking a Nail. New York: Plume (publisher). ISBN 9780452289499.
- McKellar, Danica (2009). Kiss My Math: Showing Pre-Algebra Who's Boss. New York: Plume. ISBN 9780452295407.
- McKellar, Danica (2010). Hot X: Algebra Exposed. New York: Plume. ISBN 9780452297197.
- McKellar, Danica (2012). Girls Get Curves: Geometry Takes Shape. New York: Hudson Street Press. ISBN 9781594630941.
Her first book, Math Doesn't Suck: How to Survive Middle School Math without Losing Your Mind or Breaking a Nail, was a New York Times bestseller, and was favorably reviewed by Tara C. Smith, the founder of Iowa Citizens for Science and a professor of epidemiology at the University of Iowa. The book also received a review from Anthony Jones, writing for the School Librarian journal, who described the book as "a trouble-shooting guide to help girls overcome their biggest maths challenges," noting what he described as "real-world examples of great mathematics in action." In an interview with Smith, McKellar said that she wrote the book "to show girls that math is accessible and relevant, and even a little glamorous" and to counteract "damaging social messages telling young girls that math and science aren't for them".
McKellar's second book, Kiss My Math: Showing Pre-Algebra Who's Boss, was released on August 5, 2008. The book's target audience is girls in the 7th through 9th grades. Her third book, Hot X: Algebra Exposed! covers algebra topics, while the previous two titles were intended as "algebra-readiness books." Hot X was published on August 3, 2010. Her fourth book, Girls Get Curves – Geometry Takes Shape, focuses on the subject of geometry, and attempts to make the subject more accessible.
- Chayes, L; McKellar, D; Winn, B (1998). "Percolation and Gibbs states multiplicity for ferromagnetic Ashkin–Teller models on " (PDF). Journal of Physics A: Mathematical and General. 31 (45): 9055–9063. Bibcode:1998JPhA...31.9055C. doi:10.1088/0305-4470/31/45/005.
Awards and honors
McKellar was named Person of the Week on World News with Charles Gibson for the week ending August 10, 2007. The news segment highlighted her book Math Doesn't Suck and her efforts to help girls develop an interest in mathematics, especially during the middle school years. In January 2014, she received the Joint Policy Board for Mathematics (JPBM) Communications Award. The citation credited her books, blog, and public appearances for encouraging "countless middle and high school students, especially girls, to be more interested in mathematics."
|2001||Good Neighbor||Molly Wright|
|2001||XCU: Extreme Close Up||Sarah|
|2001||Speechless...||Dana Woodman||Short film|
|2002||Sex and the Teenage Mind||Debbie|
|2002||Reality School||Sexy Sally||Short film|
|2002||Jane White Is Sick & Twisted||Tiffany|
|2002||Year That Trembled, TheThe Year That Trembled||Pam Hatch|
|2002||Hip, Edgy, Sexy, Cool||Sissie|
|2004||Raising Genius||Lacy Baldwin|
|2004||Quiet Kill||Pet Shop Girl|
|2009||21 and a Wake-Up||Jenny Valentine|
|2010||Scooby-Doo! Abracadabra-Doo||Madelyn Dinkley||Voice; direct-to-video|
|2010||Superman/Shazam!: The Return of Black Adam||Sally||Voice; direct-to-video|
|2012||Flatland 2: Sphereland||Aero||Direct-to-video|
|2014||Where Hope Grows||Susan Malcolm|
|1985||Twilight Zone, TheThe Twilight Zone||Nola (age 10)||Episode: "Her Pilgrim Soul"|
|1987||The Twilight Zone||Deidre Dobbs||Episode: "Shelter Skelter"|
|1988–1993||Wonder Years, TheThe Wonder Years||Winnie Cooper||Main role|
|1989||Super Mario Bros. Super Show!, TheThe Super Mario Bros. Super Show!||Patty||Episode: "Day of the Orphan" / "King Mario of Cramalot"|
|1990||Camp Cucamonga||Lindsey Scott||Television film|
|1992||Captain Planet and the Planeteers||Lisa||Voice; episode: "A Formula for Hate"|
|1994||Babylon 5||Aria Tensus||Episode: "The War Prayer"|
|1994||Moment of Truth: Cradle of Conspiracy||Kristin Guthrie||Television film|
|1994||Walker, Texas Ranger||Laurie Maston||Episode: "Stolen Lullaby"|
|1994||Sirens||Alison Trent||Episode: "Victims"|
|1996||Justice for Annie: A Moment of Truth Movie||Annie Mills Carman||Television film|
|1998||Love Boat: The Next Wave, TheThe Love Boat: The Next Wave||Mary Dutton||Episode: "How Long Has This Been Going On?"|
|1998||Working||Jolie||Episodes: "As Bad As It Gets", "She Loves Me Yeah, Yeah, Yeah"|
|1999||Random Play||Daughter||Episode: "1.4"|
|2000–2004||Static Shock||Freida Goren||Voice; recurring role|
|2001||Division, TheThe Division||Wendy||Episode: "Don't Ask"|
|2001||Even Stevens||Sandrine||Episode: "Sibling Rivalry"|
|2002||Justice League||Sapphire Stagg||Voice; episode: "Metamorphosis" (parts 1 & 2)|
|2002–2003||West Wing, TheThe West Wing||Elsie Snuffin||Recurring role|
|2004||King of the Hill||Sharona / Misty||Voice; episodes: "My Hair Lady", "Cheer Factor"|
|2004||Game Over||Elsa / Renee||Recurring role|
|2004||Century City||Sally||Episode: "Without a Tracer"|
|2004||Eve||Claudia||Episode: "Friend or Foe?"|
|2005||NCIS||Erin Kendall||Episode: "Witness"|
|2005||Jack & Bobby||Keirsten||Episode: "And Justice for All"|
|2005||NYPD Blue||Rosemary||Episode: "Moving Day"|
|2005||Strong Medicine||Natalie Pascal||Episode: "Feeling No Pain"|
|2005||Path of Destruction||Katherine Stern||Television film|
|2005||How I Met Your Mother||Trudy||Episode: "The Pineapple Incident"|
|2006||Inspector Mom||Maddie Monroe||Television film|
|2006||Cyberchase||Wanda||Voice; Episode: "Designing Mr. Perfect"|
|2006–2007||Inspector Mom||Maddie Monroe||Recurring role|
|2007||Random! Cartoons||Katerina "Kat" Metropoulos||Voice; episode: "Girls on the Go!"|
|2007||How I Met Your Mother||Trudy||Episode: "Third Wheel"|
|2010||Big Bang Theory, TheThe Big Bang Theory||Abby||Episode: "The Psychic Vortex"|
|2010||Generator Rex||Claire (voice)||Voice; episodes: "Hermanos", "Operation: Wingman"|
|2010–2013||Young Justice||Miss Martian||Voice; main role (40 episodes)|
|2011||Generator Rex||Claire||Voice; episode: "Haunted"|
|2011||G.I. Joe: Renegades||Sister Leia||Voice; episode: "Brothers of Light"|
|2012||Nerdist: Tribute to Science, TheThe Nerdist: Tribute to Science||Herself||Television film|
|2012||Love at the Christmas Table||Katherine "Kat" Patton||Television film|
|2013||Tasmanian Devils||Alex||Television film|
|2013||Secret Life of the American Teenager, TheThe Secret Life of the American Teenager||Herself||Episode: "Interference"|
|2013||Nerdist: Course of the Force||Bounty Hunter||Episode: "Michael Rooker & CM Punk: Lighstaber Hunt"|
|2013||The Wrong Woman||Ellen Plainview||Television film|
|2014||Transformers: Rescue Bots||Hayley||Voice; 2 episodes|
|2014||Dancing with the Stars||Herself||Contestant on season 18|
|2015||King of the Nerds||Herself||Judge|
|2015||Impractical Jokers||Herself||Episode: "The Blunder Years"|
|2015||Perfect Match||Jessica Summers||Television film|
|2015–present||Project Mc2||The Quail||Main role; Netflix original series|
|2015||Miss America 2016||Herself||Judge|
|2015||Crown for Christmas||Allie Evans||Television film|
|2016||DC Super Hero Girls||Killer Frost||Voice|
|2004||EverQuest II||Lolla Cotgrove / Pona|
|2006||Onimusha: Dawn of Dreams||Additional voices|
|2006||Marvel: Ultimate Alliance||Invisible Woman|
|2009||Marvel: Ultimate Alliance 2||Invisible Woman|
|2013||Young Justice: Legacy||Miss Martian|
- "Danica McKellar". TV Guide. Retrieved 2016-08-13.
- "Children's Books". The New York Times. September 28, 2008. Retrieved 2012-08-23.
- "Math Books". DanicaMckellar.com. Retrieved 2012-08-23.
- "Danica McKellar Biography (1975–)". FilmReference.com. Archived from the original on 2016-03-03. Retrieved 2013-07-19.
- Randle, Nancy (January 23, 1991). "Mirror Image: It's No Wonder Danica Mckellar Is A Winsome Winnie". Chicago Tribune (January 23, 1991). Retrieved 2015-05-01.
- "Danica McKellar". Maxim. February 1, 2010. Retrieved July 19, 2013.
- Where are they now? – Winnie Cooper from The Wonder Years Archived September 27, 2007, at the Wayback Machine.
- "Jimmy Fallon Explains the Meaning Behind Baby Name Winnie (Hint: It's Not About a Pooh)". Retrieved 2013-08-13. Yahoo OMG! article published online August 13, 2013. Quote: "'Nancy, my wife, and I got engaged in New Hampshire at this lake house that her family's had forever. It's on Lake Winnipesaukee.' . . . It didn’t hurt that one of the most famous Winnies in pop culture ― Winnie Cooper from The Wonder Years ― 'is the coolest girl in any TV show ever,' added the new dad."
- "Danica McKellar pictures and bio". Stuff.
- "Winnie Cooper Goes Digital:McKellar to star in movies, webisodes for Lifetime". Zap2it. 2006-06-12. Retrieved 2007-07-26.
- Cherkezian, Megan (November 17, 2006). "Wonder Years' Danica McKellar Fights Crime as Inspector Mom". TV Guide.
- "The Psychic Vortex" episode, air date 2010-11-01
- "Dancing With the Stars Cast Revealed! Cody Simpson, Nene Leakes and James Maslow Are Among the Names—See the Full List!". E! Online.
- Frazier, Kendrick (2008). "Mickelson, McKellar tout science, math, and being smart". Skeptical Inquirer. 32 (6): 12.
- Chayes, L.; D. McKellar; B. Winn (1998-11-13). "Percolation and Gibbs states multiplicity for ferromagnetic Ashkin-Teller models on z2". Journal of Physics A: Mathematical and General. 31 (45): 9055. Bibcode:1998JPhA...31.9055C. doi:10.1088/0305-4470/31/45/005. ISSN 0305-4470. Retrieved 2013-07-05.
- "USNews.com: America's Best Colleges 2006: College Flashback: Danica McKellar". U.S.News & World Report. Archived from the original on 2008-03-14. Retrieved 2010-02-03.
- Blog post by mathematician Terence Tao, a former instructor of McKellar's, complimenting her book and explaining the theorem.
- Kenneth Chang, "Between Series, an Actress Became a Superstar (in Math)", The New York Times, July 19, 2005.
- "There's not much separating her from Bacon, Erdős", USA Today, August 14, 2007
- Danica McKellar is Married! People, March 22, 2009
- Danica McKellar is Pregnant! People, March 17, 2010
- "Danica McKellar Files for Divorce". People. 2012-06-06. Retrieved 2012-06-06.
- "'Wonder Years' actress Danica McKellar files for divorce". Chicago Sun-Times. 2012-06-12. Archived from the original on 2012-07-11. Retrieved 2012-06-09.
- Watkins, Jade (February 23, 2013). "It's official: The Wonder Years star Danica Mckellar 'finalises divorce from her husband of three years Mike Verta'". Daily Mail. London.
- "Danica McKellar Is Married!". People. 2014-11-20. Retrieved 2014-11-20.
- Smith, Tara (2007-07-24). "Aetiology:Danica McKellar's "Math Doesn't Suck"". Aetiology. ScienceBlogs. Retrieved 2007-07-26.
- Jones, Anthony Hamilton (2011). "McKellar, Danica: Maths Doesn't Suck". School Librarian. 59 (1): 62. ISSN 0036-6595. Retrieved 2013-07-04.
- Smith, Tara (2007-07-25). "Interview with math whiz, author, and actress Danica McKellar". Aetiology. ScienceBlogs. Archived from the original on 2015-10-16. Retrieved 2007-07-26.
- Danica McKellar (2008). Kiss My Math: Showing Pre-Algebra Who's Boss. Hudson Street Press. ISBN 978-1-59463-049-1.
- Danica McKellar (2010). Hot X: Algebra Exposed. Hudson Street Press. ISBN 978-1-59463-070-5.
- "Actress Danica McKellar Solves For 'X' : NPR". National Public Radio. 6 August 2010. Archived from the original on 2016-03-04. Retrieved 2013-07-04.
- Danica McKellar (2012). Girls Get Curves – Geometry Takes Shape. Hudson Street Press. ISBN 978-1-59463-094-1.
- Lichtman, Flora (17 August 2012). Actress Danica McKellar Helps "Girls Get Curves". Science Friday. (Interview). National Public Radio. Washington, D.C. Retrieved 2013-07-05.
- Schuessler, Jennifer (August 22, 2010). "Children's Chapter Books". The New York Times. Retrieved 2012-08-23.
- "Best Sellers: Children's Books". The New York Times. September 28, 2008. Retrieved 2009-05-10.
- "ABC News: Person of the Week: Danica McKellar". Retrieved 2007-08-10.
- American Mathematical Society, January 2014 Prizes And Awards, p. 35,
- No More Rhyme
- "The Wonder Kid" by Liz Belilovskaya, Brain World magazine, Volume 5, Number 1, Fall 2013, pages 42–45. Publisher: International Brain Education Association, New York City. Interview of Dania McKeller with a full-page color photo.
|Wikimedia Commons has media related to Danica McKellar.|
- Official website
- Danica McKellar's blog
- Official website of her book, Math Doesn't Suck
- Official website of her book, Kiss My Math
- Danica McKellar at the Internet Movie Database
- Interview with McKellar about her theorem at NPR
- February 2006 Proof and Prejudice: Women in Mathematics Conference, at which McKellar was a speaker
- Science Friday for September 21, 2007 with McKellar among the guests
- Public School Insights Interview with McKellar about girls and math