Morgan was in the spotlight for only about a year, making his film debut in "Barnacle Bill" in 1957 which starred Alec Guinness. From there, he got a more prominent role the following year as Nosey in another Guinness film, "The Horse's Mouth." He had the last line of the film. While it looked like his career would take off, he was stricken with meningitis in late May 1958 during post production and passed away June 5th. In scenes shot but requiring follow up dialogue work, his voice was dubbed by another actor. Director Ronald Neame said in a 2002 interview that, in later viewings of "The Horse's Mouth", he was unable to discern which dialogue was Morgan's and which was the mimic.