Co-captains Emily Ogle and Maddie Nolf are heading to the pro ranks after they both were taken in the top-flight women's soccer league's draft.
Bell completed two-thirds of a two-year degree in about six months to be eligible to play for the Nittany Lions this season.
Talvitie suffered a knee injury in the gold medal game of the 2019 U-20 World Junior Championship against the United States.
The Nittany Lions will wear their new gray sweaters during Friday night's game against Michigan State at Pegula Ice Arena.
The Nittany Lions are in danger of having a losing season for two out of its last three campaigns, despite bringing back four bona fide starters from a year ago.
"Although Brandon Biro does have the talent to be on SportsCenter, I think his best attributes are his work ethic, grit, and tenacity."