Erwin alternated between two distinct deliveries, though in the show's intro he spoke with his He-Man voice as both characters. According to executive producer Lou Scheimer, Erwin did not think his own voice was heroic enough which is why a reverb was added to it in sound-editing. After retiring from professional voice-work, Erwin has not done official publicity appearances due to his shy nature. He-Man also appeared in a Streets commercial advertising branded ice cream of the franchise in Australia with Australian actor Paul Johnstone (best known for his role in "Mad Max") voicing him. In the 1987 live-action feature film, He-Man was played by Dolph Lundgren. Lundgren was forced to do all his own stunt-work due to not having a stunt double of equal build. He never transforms into Prince Adam but does deliver the franchise catchphrase "I have the power" late in the film. Cannon Films producers originally wanted to dub over his dialogue. After Lundgren redubbed his own lines multiple times, director Gary Goddard was able to retain his voice performance. At the time, Lundgren was dismissive of the part (in stark contrast to his co-star Frank Langella) but he has since appeared in promotional material relating to the film. Garry Chalk provided the voice of He-Man for the 1990 series "The New Adventures of He-Man" while Prince Adam was voiced by Doug Parker. Chalk voiced Man-at-Arms in the 2002 series. In the 2002 series, both characters were voiced by Cam Clarke. He-Man will appear in the upcoming live action film. Mike O'Hearn was rumoured to portray He-Man in the film after he posted it on Instagram, however, he denied the rumour saying that he only wanted to do the part and was not officially cast. Noah Centineo confirmed on April 29, 2019 that he will be playing He-Man in the upcoming 2020 "Masters of the Universe" live action reboot film. He-Man was characterized as possessing super speed, indestructible skin, and superhuman strength. The extent of his strength was unknown, but on one occasion he was able to hoist Castle Grayskull and throw it through a dimensional doorway. He-Man also demonstrated his strength by lifting mountains and icebergs and hurling them toward a desired target. On one occasion, he welded a broken metal chain together simply by pushing the links together. In the episode "She-Demon of Phantos", he was shown to be the only person to break Photanium (claimed by Man-At-Arms to be the strongest metal in the universe).