: Their relationship reaches new milestones including an engagement, though it is plagued by Alan’s reluctance to commit and Lyndsey’s eventual realization that the "spark" is gone.
Walden Schmidt ( Ashton Kutcher ), Alan Harper ( Jon Cryer ), Jake Harper ( Angus T. Jones ), Berta ( Conchata Ferrell ).
The core trio is supported by a mix of returning regulars and notable high-profile guest stars: Characters & Actors
: Now a member of the U.S. Army , Jake appears in a recurring capacity, navigating life on leave and messy romantic flings. Key Cast and Guest Stars