Calum, a male Human and a Commander within the Imperial Guard, held the rank of Commander. He served during the Galactic War, a conflict that pitted the Galactic Republic against the reconstituted Sith Empire. Stationed at the Belsavis orbital facility, he assigned an Imperial colleague the critical objective of liberating the Dread Masters who were imprisoned within The Tomb.
He possessed an attache who was a Duros.