Faison is among the favorite old cast members from the comedy series "Scrubs" who returned to the small screen, but with new roles -- they're the teachers at a new med school.
Faison and John C. McGinley are in for all the episodes this season, Zach Braff and Sarah Chalke, the first six.
The new kids on the block include Dave Franco, who said the "Scrubs" veterans have been nothing but welcoming.
"With the way they work on 'Scrubs,' they encourage us to try our own jokes, try to stray from the script," said Franco. "You want to be comfortable to fall on your face and try some new jokes. You don't want to feel self conscious. These guys have made the transition as easy as possible."
Faison found the experience of training newbie's, both in character and on the set exhilarating and a bit scary.
"I don't want to let anybody down. I've been doing it for nine years and I wanted the new cast to understand I'm not taking this lightly, this is real to me," said Faison. "I might know it like back of my hand, but I still take this very seriously."
"Scrubs" kicks off season nine Tuesday at 9 p.m., on ABC7.