John Leguizamo John Leguizamo

More details are emerging about John Leguizamo's 12-episode guest stint on ER, which kicks off Oct. 20. According to NBC, the actor-comedian-Sexaholic will play Dr. Ernesto Clemente, "a dynamic supervising physician who shakes up the ER with unconventional ideas and cutting-edge technology." OK, he's just asking  to get a helicopter dropped on him.