James Roday Rodriguez Shawn Spencer Actor Dulé Hill Burton "Gus" Guster Actor Corbin Bernsen Henry Spencer Actor Timothy Omundson Detective Carlton Lassiter Actor Kirsten Nelson Police Chief Karen Vick Actor Maggie Lawson Detective Julie O'Hara Actor Curt Smith Guest Star Steve Valentine Guest Star Garrett Morris Guest Star Christopher Lloyd Guest Star Lesley Ann Warren Guest Star Martin Mull Guest Star Steve Franks Executive Producer Kelly Kulchak Executive Producer Chris Henze Executive Producer Bill Callahan Executive Producer