The actor, who most recently starred on the Starz TV series Boss, will play counter-intelligence agent Harold Attinger, although no details were given regarding his villainous nature. He joins a cast that includes Mark Wahlberg, Nicola Peltz, Jack Reynor, and Stanley Tucci.
Michael Bay is directing from a screenplay by Ehren Kruger, with Lorenzo di Bonaventura, Ian Bryce, Tom DeSanto and Don Murphy producing. Shooting is scheduled to begin this June.
While primarily known for his work on TV shows such as Cheers, Frasier, and Boss, Kelsey Grammer made his presence known to genre fans as Hank "Beast" McCoy in 2006's X-Men: The Last Stand. Other silver screen performances include I Don't Know How She Does It, Fame, Middle Men, and Swing Vote.