EXCLUSIVE: Fox has added a pair of actors to its upcoming limited series 24: Legacy. Raphael Acloque is set for a regular role and Themo Melikidze will recur on the series that chronicles a race against the clock to stop a terrorist attack on U.S. soil. Starring Straight Outta Compton's Corey Hawkins, it will follow the original series' real-time format. Acloque will play Jadalla “Jad” bin-Khalid, a bookish scholar who rejected his father's politics while at university…