Stan Lee on Twitter: "In what famous cameo appearance did Stan don this stylish robe? #FlashbackFriday https://t.co/TiLUtpw9XO" / Twitter
Stan Lee, Carrie Fisher and Stephen Hawking among Big Bang Theory guest stars | BelfastTelegraph.co.uk
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Big Bang Theory: Who are the biggest guest stars to ever appear in the series? | TV & Radio | Showbiz & TV | Express.co.uk
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