Tagovailoa transferred from Alabama in May.
The Terps' have the No. 8 recruiting class in the country, per Inside Lacrosse.
Revaz will battle for playing time with Chol Marial and Galin Smith.
Maryland has a number of alumni taking the field as the league returns to action.
Voluntary football workouts have been suspended.
Williams is the top-rated quarterback in the class of 2021.
Maryland tested 105 student-athletes in its original screening.
“We remain optimistic about the return of fall sports," athletic director Damon Evans said.
Akingbesote is the fourth four-star recruit to commit to the Terps' 2021 class.
Smith averaged 1.5 points in 7.6 minutes last season.