EntertainmentFilmVideo Legendary ‘Transformers: The Last Knight’ Voice Actors Discuss Decades of Decepticons and Autobots [Video] by Jonathan Tolliver September 25, 2017 written by Jonathan Tolliver Peter Cullen and Frank Welker have spent decades voicing Optimus Prime and Megatron, respectively. Playing 45 foot tall robots comes easy to them. Continue Reading September 25, 2017 0 comment 0 FacebookTwitterPinterestEmail