John T. O'Brien is an actor, writer and voiceover artist based out of Chicago / LA. He trained in writing and improvisation at The Second City and iO. He has appeared on NBC's "Chicago Fire", Fox's "Empire", ABC's "In An Instant" and co-starred with Katie Holmes in an untitled FBI pilot. His latest project, Dad Man Walking, is based on his true life as a single father to a beautiful daughter. He is represented by Stewart Talent.

On SPR he plays Captain Phasmic.