Sierra The Nerdy Troublemaker is a Disney Channel original animated series that premiered on September 8, 2012 and ended on February 27, 2016. It is created by Stephen Holman (the man behind Life With Loopy and Phantom Investigators) and is a production of Wholesome Products, Inc. and Stretch Films Inc.


  • Follow the adventures of 12-year-old Sierra Norman, as she and her family and friends live together in the town of Hopswell Mountains.


  • Sierra Norman (voiced by Eden Sher) is the 12-year-old protagonist of the series who loves to make pranks.
  • Ashley Norman (voiced by Tara Strong) is Sierra's 16-year-old Sister who is a basement liver.
  • Tamara Norman (voiced by Candi Milo) is Sierra's 14-year-old sister who is the replacement of the late Charles Norman.
  • Lizzie Norman (voiced by Stephanie Morgenstern) is Sierra's 10-year-old Sister who is the replacement of the late Silas Norman.
  • Carol and Stephen Norman (voiced by Kari Wahlgren and Tom Kenny) are Sierra and her sisters' parents.
  • Buster Richardson (voiced by Billy West) is Sierra's lover who recognizes her as an idol.
  • Moria Phillips and Desiree Frances (voiced by Grey Griffin and Jessica DiCicco) are Sierra's best friends who are mostly hanging out with her.
  • Bertha Sparks (voiced by Jennifer Hale) is Sierra's mean rival whose parents are dead in a car accident. She currently lives with her Aunt Melody Sparks.
  • Principal Hanna Wilson (voiced by Nadine Rabinovitch) is the strictest principal in Sierra's school who wants to keep her students running.
  • Donna Nichols and Andi Barton (voiced by Andrea Baker and Kelly Sheridan) are friends to Bertha and rivals to Moria and Desiree.
  • Nozzle (voiced by Katie Griffin) is the Norman Family's pet cat who has white fur and meows constantly.
  • Maverick Richardson (voiced by Danny Cooksey) is one of Buster's three brothers who is 16-years-old.
  • Gareth Richardson (voiced by Greg Cipes) is Buster's 14-year-old brother who doesn't take the instance.
  • Diego Richardson (voiced by Lainie Frasier) is Buster's 10-year-old brother who always reminds himself to make a focus.
  • Harper and Seymour Richardson (voiced by Jocelyn Loewen and Dale Wilson) are Buster and his brothers' parents.
  • Whammer (voiced by Frank Welker) is the Richardson Family's pet dog who barks as usual.
  • and more


Season 1 (2012-2013)

  1. (September 8, 2012)
  2. (September 15, 2012)
  3. (September 22, 2012)
  4. (September 29, 2012)
  5. (October 6, 2012)
  6. (October 13, 2012)
  7. (October 20, 2012)
  8. (October 27, 2012)
  9. (November 3, 2012)
  10. (November 10, 2012)
  11. (November 17, 2012)
  12. (November 24, 2012)
  13. (December 1, 2012)
  14. (December 8, 2012)
  15. (December 15, 2012)
  16. (December 22, 2012)
  17. (December 29, 2012)
  18. (January 5, 2013)
  19. (January 12, 2013)
  20. (January 19, 2013)
  21. (January 26, 2013)
  22. (February 2, 2013)
  23. (February 9, 2013)
  24. (February 16, 2013)
  25. (February 23, 2013)
  26. (March 2, 2013)

Season 2 (2013-2014)

Season 3 (2014-2015)

Season 4 (2015-2016)

Production Companies

  • Wholesome Products, Inc.
  • Stretch Films Inc.


  • This is Wholesome Products, Inc.'s second show to be distributed (with the first being Kids' WB!'s Phantom Investigators)
  • It is also the third Disney/Stretch Films show to be ever made, with the first being Lisa Papademetriou's Accidentally Adventures, and the second being Jose F. Mojica's Jeff and Taylor.
  • The styles for the series are similar to those from Life With Loopy and Phantom Investigators.

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