Top 7 in Top 10 smartest characters in anime Dr.Stone.
Chelsea Childe is a young, intelligent woman found in North America by the Kingdom of Science. Despite her age and childish attitude, Chelsea is a genius, especially when it comes to geography.
Like Senku, Chelsea can awaken without anyone's help, and mainly by maintaining consciousness for thousands of years. Proof of how smart Chelsea really is, is when she definitely knows everything about geography, and remembers maps and places despite thousands of years of petrification. Despite appearing late, Chelsea has helped the Kingdom of Science on their way and is considered one of the smartest characters.