Charlie Sheen Charlie Harper Actor Jon Cryer Alan Harper Actor Angus T. Jones Jake Harper Actor Marin Hinkle Judith Actor Conchata Ferrell Berta Actor Jennifer Taylor Chelsea Guest Star Emmanuelle Vaugier Mia Guest Star Ryan Stiles Dr. Herb Melnick Guest Star Kelly Stables Melissa Guest Star Joel Murray Petey Guest Star Ken Lerner Dr. Levine Guest Star Chuck Lorre Executive Producer, Writer Lee Aronsohn Executive Producer, Writer, Director Eric Tannenbaum Executive Producer Kim Tannenbaum Executive Producer Mark Burg Executive Producer Oren Koules Executive Producer Mark Roberts Writer Susan Beavers Writer