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Who Is Dr. Robotnik’s Grandpa? Jim Carrey’s New Sonic The Hedgehog Character Explained

Sonic the Hedgehog 3 featured Dr. Robotnik's (Jim Carrey) grandfather, who plays a key role in the larger Sonic franchise.
Polygon

Sonic 3’s incredible laser dance sequence was all Jim Carrey’s idea, of course

One of the standout moments of Sonic the Hedgehog 3 sees Jim Carrey pulling double duty as two Doctors Robotnik — Ivo and his grandfather Gerald — merrily dancing their way through a classic Hollywood ...