As many fans already know, “They Saved Lisa’s Brain” was not the only episode of The Simpsons that Stephen Hawking appeared in during his life.
The folks behind the series have regarded Hawking as the most intelligent guest to ever appear on The Simpsons, and these stories seem to suggest that he also had a killer sense of humor that will we will sorely miss.
In total, he made three separate appearances on the iconic, long-running animated series, earning himself the status as a beloved fan-favorite with each subsequent cameo.