(written from a Production point of view)
He portrayed a Vulcan adviser in the Star Trek: Enterprise episodes "Broken Bow" and "First Flight". He was identified by the name tag of his costume which was sold off on the It's A Wrap! sale and auction on eBay and was also worn by regular background actor Louis Ortiz.  Acker filmed his scene for "Broken Bow" on 5 June 2001 on Paramount Stage 18.
One of Acker's most recent roles was that of one of a reporter in the drama Frost/Nixon (2008, with Andy Milder, Geoffrey Blake, Clint Howard, Ned Vaughn, and Googy Gress). Acker is maybe best known for his recurring role as Norman the doorman in the comedy series The Suite Life of Zack and Cody (2006-2007, along regular Kim Rhodes). He also portrayed supporting roles in the television series Vital Signs (1997), the science fiction film Moonbase (1998, with Robert O'Reilly), the television movie Unauthorized Brady Bunch: The Final Days (2000, with Lisa Wilcox and David Selburg), and the comedy sequel Scary Movie 2 (2001, with Woody Bosco and Mark Barrett).