Danica McKellar

Child actress of 'The Wonder Years' who became a published research mathematician and author of math books.

Danica McKellar, born in La Jolla, California, in 1975, transitioned from a prominent career as a child actor into a recognized mathematics writer and advocate. While balancing roles in popular television series, she earned a Bachelor of Science degree in mathematics, achieving academic distinction through her contributions to original research in statistical mechanics.

Early Acting Career

At age seven, McKellar enrolled in acting classes at the Lee Strasberg Institute in Los Angeles. She gained recognition as a teenager for her role as Winnie Cooper in the television series The Wonder Years, which aired on ABC from 1988 to 1993. Her early professional experience included appearing in the music video for Debbie Gibson's 1989 single, No More Rhyme.

THE FREE TEST
How high is yours?

Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.

Take the IQ test →

Academic Achievement and Mathematics

In 1998, McKellar graduated summa cum laude from the University of California, Los Angeles, with a degree in mathematics. During her undergraduate studies, she co-authored a scientific paper with Professor Lincoln Chayes and student Brandy Winn. This research on ferromagnetic Ashkin-Teller models led to the Chayes-McKellar-Winn theorem. Her work in this field earned her an Erdős number of four.

Diverse Screen Work

McKellar maintained an active career in entertainment following her time on The Wonder Years. She appeared in Lifetime films such as Cradle of Conspiracy and Justice for Annie, and held a recurring role on The West Wing during the 2002-03 season. She expanded her portfolio into voice acting for projects like Young Justice and video games such as X-Men Legends. In 2015, she joined the cast of the Netflix series Project Mc2 and later starred in numerous Hallmark Channel films, including Crown for Christmas and The Matchmaker Mysteries.

Author and Advocate

McKellar has written seven non-fiction books focused on mathematics, aiming to boost confidence among middle and high school students. Her publications include Math Doesn't Suck, Kiss My Math, Hot X: Algebra Exposed, Girls Get Curves: Geometry Takes Shape, Goodnight, Numbers, and Do Not Open This Math Book. She also served as a judge for the television competition Domino Masters in 2022.

Fast facts

Questions readers ask

What is the Chayes-McKellar-Winn theorem?

It is a mathematical result concerning percolation and Gibbs states multiplicity for ferromagnetic Ashkin-Teller models, co-authored by McKellar as an undergraduate.

Has she continued to act since studying mathematics?

Yes, she has appeared in various television roles, including the series The West Wing, Project Mc2, and multiple Hallmark Channel films.

Achievements

Compare with the greats

Salvador Dal vs VoltaireCharles Babbage vs Sun TzuImmanuel Kant vs Paul DiracGarry Kasparov vs Michelangelo
See the IQ Rankings →All comparisons →

Child prodigies

Lydia SebastianMensa Score 162 at Age 12 — Indian-British Doctor's Daughter…Colin CarlsonBegan university courses at nine and now forecasts the next…Rayssa LealRayssa LealViral 'Fairy of Skate' who won Olympic street silver at age 13Jacob BarnettJacob BarnettAutistic Physics Prodigy — IUPUI Master's at 14, Perimeter…
Child prodigies →

Play & come back tomorrow

Daily Genius Challenge · Guess the genius
French chemist whose germ theory gave the world pasteurization and the first rabies vaccine.
Tap your answer ↓
Which Genius Are You? Free IQ Test