The Terps will return all five of their starters from a season ago and welcome the No. 3-ranked recruiting class in the country.
For the third straight year, the Terps will face South Carolina.
Collins is a former McDonald's All-American.
She averaged 1.5 points and 8.9 minutes per game during her three years with the Terps.
Charles averaged 17.0 points and 6.7 rebounds during her junior season.