Scirrotto, a safety, and Christopher Baker, a defensive tackle, face the most serious counts, including burglary, felony trespassing, harassment and simple assault. King, a cornerback, and three other players face charges including harassment and disorderly conduct.
Police have said they received a report that shortly after midnight on April 1 about 10 men pushed their way into an apartment and assaulted several male partygoers. That clash was apparently connected to a "street confrontation" about an hour earlier, police said.
Residents of the apartment received a letter a few days later that asked them to drop the charges, a university spokesman said. It was signed, "The Voice of the Penn State Student Body."
The other players charged Friday are Jerome A. Hayes, a linebacker; Lydell R. Sargeant, a cornerback; and Tyrell A. Sales, a linebacker considered to be a potential starter.