The charges: Bill Cosby was charged Wednesday with aggravated indecent assault, a felony.
The accuser: Andrea Constand, a former employee of Pennsylvania's Temple University, has accused Cosby of tricking her into taking drugs before sexually assaulting her at his home in Philadelphia in 2004.
The case: When Constand filed the initial complaint against Cosby in 2005, police refused to file charges against the celebrity comedian. In 2005, Constand filed a civil lawsuit against Cosby. Court papers say 13 other women with similar allegations were prepared to testify as anonymous "Jane Doe" witnesses against him. The case was settled out of court.
Possible punishment: Cosby could face up to 10 years in prison and a $25,000 fine if convicted.
Other accusers: Some 50 women have accused Cosby of drugging and sexually assaulting them over a 40-year period; but, in most cases, it is too late for criminal charges to be filed.