Margo Cathleen Harshman (born March 4, 1986) is an American actress known for her role as Tawny Dean on the Disney Channel series Even Stevens. She is also known for her role on The Big Bang Theory as Sheldon Cooper's assistant, Alex Jensen, and as Delilah Fielding on NCIS.

Personal life

Margo Harshman was born in San Diego, California. She has two older sisters, one older brother and one younger brother. Harshman lived in La Costa, San Diego County, California and attended school there until she was 12, after which she moved to Orange County, California. There she finished the rest of her schooling, first at Hewes Middle School and then at Foothill High School. Harshman now lives in Los Angeles.

She is related to former professional baseball pitcher Jack Harshman and former Washington State University and University of Washington basketball coach Marv Harshman.

On May 14, 2014, her mother, Janelle Harshman, died from breast cancer after a 20-year battle with the disease.


At the age of two, Harshman's grandmother entered her in a beauty pageant. At 3, she was involved in dance and gymnastics. At 5, she learned to play piano, and at 8, she began acting and met her first manager.

She has appeared in the The Big Bang Theory as Alex Jensen, the assistant of Sheldon Cooper, and in NCIS as Delilah Fielding, the girlfriend of Timothy McGee. Harshman starred on the short-lived TV shows Run of the House and Center of the Universe. Her movie appearances include Sorority Row and College Road Trip.

Awards and nominations

In 2005, Harshman was nominated for two awards at the Young Artist Awards, one for Best Performance in a TV Movie, Miniseries or Special by a Supporting Young Actress for The Even Stevens Movie (2004) (TV) and the other for Best Performance in a TV Series (Comedy or Drama) by a Supporting Young Actress for Even Stevens (2001). In 2009, Harshman won the ShoWest "Female Stars of Tomorrow" award at the ShoWest Convention along with fellow Sorority Row cast members Briana Evigan, Leah Pipes, Rumer Willis, Jamie Chung and Audrina Patridge.



1997The Elf Who Didn't BelieveJolieFilm debut
2001Murphy's DozenBridget
2003Recipe for DisasterRebecca Korda
2003The Even Stevens MovieTawny Dean
2006Simon SaysKate
2006Hiding VictoriaVictoria Walker
2007Rise: Blood HunterTricia Rawlins
2007Judy's Got A GunMaya Spektor
2008College Road TripKatie
2008From WithinSadie
2008Pretty Little DevilsNinaAlso known as Legacy
2008Extreme MovieTed's Girlfriend
2009Fired Up!Sylvia
2009Sorority RowCharlene "Chugs" Bradley


2000–2003Even StevensTawny Dean47 episodes
2003–2004Run of the HouseBrooke FranklinMain cast
2004Without a TraceHarley PalmerEpisode: "Bait"
2004Center of the UniverseSara2 episodes
2005EverwoodMauraEpisode: "Put on a Happy Face"
2006Grey's AnatomyJennifer MorrisEpisode: "Oh, the Guilt"
2007JourneymanAbby ArmstrongEpisode: "Winterland"
200890210Detention girlEpisode: "Hollywood Forever"
2008Boston LegalMargie CogginsEpisode: "Juiced"
2009Modern FamilyJungle TanyaEpisode: "Fizbo"
2010$h*! My Dad SaysKimEpisode: "Family Dinner for Schmucks"
2012HouseMelissaEpisode: "Love Is Blind"
2012BentScrewsie6 episodes
2012–2013The Big Bang TheoryAlex Jensen4 episodes
2013BetasLisa4 episodes
2013BonesAlison KidmanEpisode: "The Fury in the Jury"
2014CSI: Crime Scene InvestigationApril BrockEpisode: "Rubbery Homicide"
2013–presentNCISDelilah Fielding9 episodes