Malcolm Jamal-Warner as Theo Huxtable on 'The Cosby Show.' His death by drowning at 54 has brought on a feeling of despair among Gen Xers. Al Levine/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment As a kid you didn't need to have smoked marijuana or even know what it was (I plead ignorance on both counts - really Mom!) to vibe with a flustered Theo Huxtable after his su...