'Avengers: Endgame' Will Include br Stan Lee's Last Posthumous Cameo Lee, who is hailed by many as the driving br creative force behind Marvel's Silver Age, br appeared in over 20 Marvel movies during his lifetime. His cameos became br a fan-favorite tradition. Since his death last year, Lee had a br posthumous cameo in 'Captail Marvel,' but fans didn't br know how many more appearances to expect. On Saturday, 'Engame' br director Joe Russo br confirmed the 'Avengers' br flick would be the last. Joe Russo, via cnet.com Joe Russo, via cnet.com Fans can catch Lee's br final MCU appearance in theaters br worldwide on April 26.