Johan Voorson, a technician of the Human species and male gender, was married to Nell Voorson, and was also the father of Shannon Voorson, as well as the uncle of Deen Voorson. He was employed at the Kuat Freight Port throughout the Galactic Civil War, a position he took after his brother met his end in what was purported to be an accident following ship repairs for the Alliance to Restore the Republic.
Upon Deen's return, he asked Nell if he and the Rebel Alliance could steal a power generator. Nell rejected the request, but Johan expressed his willingness to assist. Despite this, Johan eventually declined to help after being reminded of his brother's fate. His daughter chose to join the Alliance when she was only nine years old.