Fast Facts

  • Along with her sister Crystal, began acting at a young age at her mother's dance studio.
  • Her breakthrough role came at age 12 as Winnie Cooper in The Wonder Years; her sister had originally auditioned for the part. 
  • Graduated summa cum laude from UCLA with a degree in mathematics; co-authored a new math theorem, the Chayes-McKellar-Winn Theorem.
  • Wrote, directed and produced the 2001 short Speechless...; the film won Best Short in the 2002 California Independent Film Festival.
  • Authored the 2007 book Math Doesn't Suck: How to Survive Middle-School Math Without Losing Your Mind or Breaking a Nail.


  • Crystal McKellar — Sister
  • Chris McKellar — Father
  • Mike Verta — Ex-husband
  • Draco Verta — Son
  • Mahalia McKellar — Mother
  • Scott Sveslosky — Husband


  • University of California, Los Angeles, California, United States (BS in Mathematics, 1998)

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  • Birth Name: Danica Mae McKellar
  • Birth Place: La Jolla, California, United States
  • Profession: Actor, Mathematician, Writer, Director, Producer

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