Although her sister Rooney was the first to hit mainstream success with her Oscar-nominated performance as Lisbeth Salander in David Fincher's American adaptation of "The Girl with the Dragon Tattoo," in fact the "House of Cards" actress is older by two years - and Kate Mara's net worth is also higher than her little sister's!

Although it wasn't until her 2013 Emmy-nominated portrayal of Zoe Barnes in the Netflix political drama "House of Cards" that Kate Mara's net worth - as well as her success - started to really rise, in fact the actress' first screen credit goes all the way back to a 1997 episode of "Law and Order."

Although Kate Mara's net worth is all her doing, in fact her and sister Rooney come from a family of money, they from two football dynasties: on her father's side, her family owns the New York Giants team, while on her mother's side, her family (the Rooneys, where her sister takes her stage name - in fact, her given one is Patricia) descends from the Pittsburg Steelers founder Art Rooney, Sr.

In fact, regardless of Kate Mara's net worth, she often sings the national anthem at the Giants home games!

In any case, Kate Mara's net worth comes from a long career in independent film, such as starring in Josh Radnor's directorial debut "Happythankyoumoreplease" and a year before a cameo in "Iron Man 2," although most of her best-known work comes from television, as she had roles in the HBO series "Entourage" as well as co-starring in "American Horror Story" for one season - but it was co-starring with Kevin Spacey as a reporter climbing to the top in the very evil Washington D.C. of "House of Cards" where her fame really kicked off.

These days, she's a few months away from starring in her first blockbuster, taking on the role of Sue Storm/The Invisible Woman in the new "Fantastic Four" film, previously played by Jessica Alba.

According to Celebrity Net Worth, Kate Mara's net worth currently stands at $10 million.