|Also known as||John Thaddeus Battistessa, Johnny|
|Character||Moab prison guard|
|Date of birth||24 October 1960|
|Origin||Teaneck, NJ, USA|
John Thaddeus began his acting career preforming in local theater performances in the early 80s. Eventually, he got a few supporting movie roles such as Sea Of Love and The World According to Straw. He has appeared in over twenty-five television shows including Ally McBeal, ER, Walker, Texas Ranger, Firefly, CSI: Miami, Without a Trace, Boston Legal, and 24.
John has appeared with several other Heroes cast members, including Marcia del Mar in Days of Our Lives, Lisa Lackey in NYPD Blue, Dan Warner in Navy NCSI, Joe Bucaro in The Guardian, Bart McCarthy in Charmed, Michael Reilly Burke in Octopus 2, Jessalyn Gilsig in Boston Public, Joanna Cassidy in Diagnosis Murder, Markus Flanagan and Clay Wilcox in The Practice, and Paul Perri and Missi Pyle in Boston Legal. He also did voicework on the video game L.A. Noire with Greg Grunberg, David H. Lawrence XVII, Kate Connor, Jared Ward, Benjamin Byron Davis, Ron Perkins, William Charlton, Wiley Pickett, Michael Silver, John Prosky, Ned Vaughn, Andrew Connolly, Dusty Sorg, and Ryan Smith.
- John has three children.
- John is represented by Polaris Entertainment Inc. and Momentum Talent & Literary Agency.