Ranked #5 of 13 in Season 1•matches the season avg
An I.Q. test result has Ferguson believing that he is really a genius. His dreams of creating a model society come crashing down when he goes head-to-head with Clarissa on a game show called "Brain Drain".
Melissa Joan Hart
Clarissa Darling
Jason Zimbler
Ferguson Darling
Elizabeth Hess
Janet Darling
Joe O'Connor
Marshall Darling
Sean O'Neal
Sam Anders
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"Brain Drain" is episode 9 of Clarissa Explains It All season 1. It scored 7.8/10 from 65 votes, ranking #5 of 13 episodes this season (season average 7.8). It aired on May 18, 1991.
