Three more women have accused Bill Cosby of sexual assault in the 1970s.
The new claims come a week before he is due to give a sworn deposition in a separate sex assault lawsuit.
Attorney Gloria Allred said that the statute of limitations prevents them from taking legal action.
However, she said that the women wanted to add their voices to the more than 50 who have already come forward with similar claims.
Mr Cosby's lawyers have repeatedly denied any wrongdoing by their client. The 78 year-old entertainer has never been charged with a crime.
He has admitted having extramarital relationships with several women, including some who now accuse him of sexual assault.