Cal "Sparkplug" MacNannovich was a cybernetic hyperstar in the year 5.5/Apple/26.
He was one of the guests on Platform One when Earth was destroyed. His partner and he wore large, hooded cloaks and cybernetic face masks which special air was pumped into. (TV: The End of the World)
Cal MacNannovich, along with the other survivors of Platform One, was later kidnapped by the Elth of Balhoon, who believed that they hadn't tried to help the Moxx of Balhoon and had abandoned him to die. They were rescued by the Tenth Doctor and not only forgave the Elth for kidnapping them, but offered to help him as well. Cal offered to star in a Hyperfilm dedicated to the Moxx. (COMIC: Reunion of Fear)
At some point, Cal MacNannovich presumably portrayed the character of James Bond. This version of the character was the Tenth Doctor's favourite. (PROSE: The Art of Destruction)
The Doctor and Rose once tried to find him, after he disappeared. (COMIC: Hyperstar Rising