Duane Shepard Sr.

Jay has grown children, grandchildren and a gorgeous young wife, who has a preteen son of her own; all together they must bridge generational, cultural and social gaps.

In the season three premiere, Mary (Zoe Perry) worries about Sheldon's mental health, after Dr. Sturgis experiences a nervous breakdown.

Leslie, nervous about her first date with Dave (Louis C.K.), goes on a practice date with Ann; Ron, Tom, April and Mark try to find dirt on one another.

Meredith and Lexie's father returns to Seattle Grace with stomach pains and a new girlfriend; Alex butts heads with the new OB; Mark bribes Jackson for information on Lexie.

Tammy II crashes a woodworking awards dinner that Ron, Diane and Leslie are attending; Jerry fails to invite some of his friends to his holiday party.

Leslie runs afoul of local shock jocks when she creates a new town slogan; Andy discovers an interesting secret about Ron while scouting for bands to play the Unity Concert; Tom, Donna and April look for a restaurant locale.