Known In The '70s For: Playing Wilma McClatchie in Big Bad Mama (1974)

If you think cougars and MILFs are a new phenomenon, consider this: Angie Dickinson was a cougar and MILF before some of today's cougars and MILFs were even born. Dickinson turned 39 in 1970. 

The reason Angie makes this list can be summed up in three words: Big Bad Mama. The 1974 film, about a female gangster in the 1930s, was dressed-up grindhouse fare, but it struck a chord and proved that Dickinson, in her 40s (and nude in a couple scenes) was still a hot babe. It came out nearly simultaneously with the debut of Police Woman, a cop series starring Dickinson that ran for four years.