The voice cast features Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria and Harry Shearer.
James L. Brooks, Matt Groening, Al Jean and Matt Selman serve as executive producers. 20th Television and Gracie Films Productions produce.
"Everyone at The Simpsons is thrilled to be renewed once more, and we are planning lots of big surprises," said Groening. "Homer will lose a hair, Milhouse will get contact lenses and Bart will celebrate his tenth birthday for the thirty-third time."
"It's a sincere pleasure to announce the Season 33 and 34 pickups for The Simpsons. We keep hoping that, eventually, they'll get it right," added Charlie Collier, CEO, FOX Entertainment. "Profound respect for and congratulations to Matt, Jim, Al and the many other wonderful partners working really hard to finally elevate The Tracey Ullman Show. As they say 'practice makes perfect.'"
