'Hairspray Live!' adds Sean Hayes, Rosie O'Donnell - but no new songs for Ariana Grande

“Hairspray Live!” can’t stop the casting beat.

The already star-studded cast is adding more notable names to the roster of NBC’s upcoming live musical production: Sean Hayes as dress shop owner Mr. Pinky and Rosie O’Donnell as the gym teacher.

Executive producers Neil Meron and Craig Zadan, who...