You know them, you love them...and you certainly wouldn't want to piss them off. So who are they? They are the uber tough heroines who prove time and again that one doesn't need a y chromosome to kill bad guys, protect loved ones and ultimately save the day. Each one of them fights for a different reason, a different cause. Each has her own style, strengths, and battles. They do all share a common trait, however - they can all take on pretty much any man, woman, robot or monster that comes their way. Here is Starpulse's tribute to "Television's Top Buttkicking Gals."

Buffy Summer...

Happy Birthday to Grey's Anatomy actress Katherine Heigl (1978), actress Denise Crosby (1957), basketball legend Oscar Robertson (1938), piano man Scott Joplin (1868; d. 1917), and 12th President of the United States Zachary Taylor (1784; d. 1850).

Happy Birthday to Grey's Anatomy actress Katherine Heigl (1978), actress Denise Crosby (1957), basketball legend Oscar Robertson (1938), piano man Scott Joplin (1868; d. 1917), and 12th President of the United States Zachary Taylor (1784; d. 1850).

Happy Birthday to Roswell hottie Katherine Heigl (1978), actress Denise Crosby (1957), basketball legend Oscar Robertson (1938), piano man Scott Joplin (1868; d. 1917), and 12th President of the United States Zachary Taylor (1784; d. 1850).