William Fichtner confirms Eric Sacks was Shredder originally until reshoots

[IndigoErth]

Originally Posted by Shark_Blade

I mean... if he treasures the mutant blood so much, why not keep them alive so he can keep extracting blood from them?

Mutagen in the blood, not the blood itself... he just wants the mutagen back. Limited supply in the Turtles.

Now why they'd assume it to be a successful magic cure for the contamination he'd inflict on the city when they had still been experimenting with it at the time of the fire and it's main result so far seems to be mutating living things... *MASSIVE SHRUG* Like requiring 2014 Raph shoulder size massive.

Also... the amount he got from them should have been TINY considering how small they were when injected.