Cal "Spark Plug" MacNannovich was a cybernetic hyperstar in the year 5.5/Apple/26.
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)