Ashton Kutcher Walden Schmidt Actor Jon Cryer Alan Harper Actor Angus T. Jones Jake Harper Actor Holland Taylor Evelyn Harper Actor Conchata Ferrell Berta Actor Marin Hinkle Judith Guest Star Ryan Stiles Dr. Herb Melnick Guest Star Courtney Thorne-Smith Lyndsey Mackelroy Guest Star Graham Patrick Martin Eldridge Mackelroy Guest Star Patton Oswalt Billy Stanhope Guest Star Richard Whiten Sergeant Preston Guest Star Alem Brhan Sapp Drill Sergeant Guest Star Chase Austin Slacker 1 Guest Star Ryan Heinke Slacker 2 Guest Star Chuck Lorre Executive Producer, Writer Lee Aronsohn Executive Producer, Writer Eric Tannenbaum Executive Producer Kim Tannenbaum Executive Producer Mark Burg Executive Producer Oren Koules Executive Producer Eddie Gorodetsky Writer Jim Patterson Writer Don Reo Writer James Widdoes Director