Worst Ideas for Remakes or Sequels

I thought it would be fun to share everyone's nightmare casts for remakes or sequels. They don't have to be limited to real life actors, either. For example, Disney's the Black Cauldron with a cast of (in order of appearance):
Taran- Shia LeBoufe
Princess Eilonwy- Kristen Stewart
Fflewddur Fflam- Justin Bieber
Gurgi/Doli- Nick Jonas
The Horned King- Alvin the Chipmunk
Dallben- Kevin Jonas
King Eiddileg- Frank N' Furter (I couldn't make it a cast completely devoid of talent.)
Ordu- Twilight Sparkle
Orwen- Queen Crysalis
Orgoch- Fluttershy
Pryderi (Brand new character introduced in the remake to complete the family)- Joe Jonas