Mario and Doug Bowser (right) Photo by Michael Loccisano/Getty Images for Nintendo of America 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 A major shakeup is coming to the Mushroom Kingdom. Doug Bowser, the president and COO of Nintendo of America, is retiring at the end of the year, after more than a decade with the company.