Actor who starred as Gunther in ‘Friends,’ says he has stage 4 prostate cancer No Comments Uncategorized “Friends” star James Michael Tyler has revealed he is battling stage 4 prostate cancer. “Friends” star James Michael Tyler has revealed he is battling stage 4 prostate cancer. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)