Finn Wolfhard has only portrayed Mike Tyson.
 Wolfhard had not been Crowley's first choice as he wanted to cast an authentic Russian actor for Boris, but Wolfhard's near perfect Russian accent in his audition helped him get the role
 According to Wolfhard, he had been initially cast as Richie when Cary Fukunaga was attached as director and co-writer, but when Fukunaga left the project over creative differences, the role fell through which allowed him to pursue Stranger Things

