[1] Tassler was born in New York City to a Jewish father and a Puerto Rican mother who converted to Judaism.
[2][3] She was the highest profile Latina in network television and one of the few executives who had the power to greenlight series.
[4][5] Her boss was Nancy Tellem, President, CBS Paramount Network Television Entertainment Group.
Tassler grew up in upstate New York and eventually graduated from Boston University (bachelor of fine arts in theater).
There, she worked as a talent agent at Triad Artists for about 5 years before moving on to Warner Brothers.