Look who's checked in at County General: Dr. Victor Clemente (John Leguizamo) arrives with a motor mouth, a load of talent, and a questionabale past. Imposing, no-nonsense Eve Spellman (Kristen Johnson) takes charge (and almost takes over) as the new nurse manager. And hunky paramedic Tony Gates (John Stamos) proves he's more than a guy on the make. The 22 episodes of Season 12 (2005-6) also brings spiraling drama and suspense to the lives of ER veterans. Abby (Maura Tierney) and Kovac (Goran Visnjic) share unexpected news. Gallant (Sharif Atkins) comes home from Iraq to be with Neela (Parminder Nagra). Pratt (Mekhi Phifer) goes to Darfur to work with Carter (Noah Wyle). And burn victims, stabbing victims, gunshot victims, assault victims -- young and old, make and female, grateful and combative -- keep the ER on edge.