|Season 12, Episode 5|
|Air date||October 20, 2005|
|Written by||Janine Sherman Barrois|
|Directed by||Arthur Albert|
| ← Previous|
"Blame It On The Rain"
| Next →|
Wake Up is the 5th episode of the twelfth season of "E.R."
JOHN LEGUIZAMO JOINS THE CAST OF ER AS DR VICTOR CLEMENTE: Pratt (Mekhi Phifer) gets a wake-up call when the new attending (John Leguizamo) poses as a patient to test the knowledge of doctors in the ER.
Meanwhile, Kovac (Goran Visnjic) bonds with the former coma patient and contemplates bending the rules for her.
A breast cancer patient convinces Abby (Maura Tierney) to get her first mammogram. Pratt's father Charlie (Danny Glover) tries to convince his son that he has turned his life around.
Kristen Johnson, Laura Innes, Parminder Nagra, Scott Grimes, and Shane West also star.