Newberry, a 6-2 junior, is transferring from New Mexico Junior College, while the 5-10 Griffin is a freshman from Landry-Walker High School in New Orleans.
Hickey started 31 games last season for the LSU Tigers, averaging 8.4 points, 3.7 assists, 2.8 rebounds and 1.8 steals. His 216 steals are fifth most in LSU history.
HIckey's father told The Advocate of Baton Rouge that Anthony Hickey left LSU after Tigers head coach Johnny Jones told him that his scholarship was not being renewed for the 2014-15 season.
HIckey started 23 games as a sophomore, averaging a career-best 11.2 points. He was a starter in 31 of 33 games as a freshman, averaging 8.9 points and 3.8 assists.