Identify and connect to famous mad scientist

[Edit: *sigh* Yes, small goofup. Not significant enough to require removing question since enough clues are still available.]

Cracked by udupendra , akhi , Dibyo , KRIK , Raghuvansh , nishansolo and Rithwik K.

Answer:

The Brain, from Pinky and the Brain.

Quoting udupendra:

1. Tom Minton – Brain’s appearance is based on him
2. Orson Welles – Brain sounds like him
3. Rob Paulsen – voices Pinky. (Yes, ideally I should have shown Maurice LaMarche who voices Brain.)