Strong also performed with the Toronto Jewish Theater, where she acted in A Night of Stars and was featured in an audiotape for "Lay Down Your Arms" with the Habonim Youth Choir, singing the lyrics in both English and Hebrew.

[5] She took improv classes at The Second City in Toronto[6] and continued acting in both animated and live-action shows and films, before moving to Los Angeles in January 1994.

as Ingrid Third; The Fairly OddParents as Timmy Turner (Strong took over the role after the suicide of the original voice actress Mary Kay Bergman—the two were close friends[8]) and Poof; Rugrats and All Grown Up!

as Dil Pickles; The Powerpuff Girls as Bubbles; Ben 10 as Ben Tennyson, Upgrade, Blitzwolfer, and Buzzshock; Chowder as Truffles; Foster's Home for Imaginary Friends as Terrence; the singing voice of Meg Griffin and additional voices on Family Guy; My Little Pony: Friendship Is Magic as Twilight Sparkle, Unikitty!

While recording lines for her role as Dil in Rugrats, one scene's script for Strong's character prompted her to make crying noises.

During the taping, the producers suddenly paused and revealed to Strong that her voice acting of a child had been so realistic that she had inadvertently made a woman in the studio lactate.

[11] Beginning with the video game Batman: Arkham City, Strong would also succeed Arleen Sorkin as the voice of Harley Quinn.

[12] In January 2013, she voiced the character Plum in Cartoon Hangover's Bravest Warriors, created by Pendleton Ward.

[23][24] Strong starred in the Canadian series Pretty Hard Cases as Tiggy Sullivan, the head of a drug trafficking gang.

They explained on their official Twitter page that "this decision was due to a trend among Tara's recent online activity, including posts that promote controversial messages regarding the peoples of Palestine currently being affected by the ongoing Israel-Palestine crisis.

[36] That same year, she started dating social media entrepreneur Willie Morris who runs Happy Goat Farm, a farmland based in Yosemite.

[39] In 2013, she was involved with a charity group called Bronies for Good, helping them raise funds for a family whose daughter had a brain tumor.