Tarik Torgaddon was the Captain of the Luna Wolves 2nd Company and member of the elite Mournival, an informal council of four captains meant to advise the Legion's primarch, Horus. He was known as a joker but an extremely skilled warrior.
He was also a member of the warrior lodge that existed in the Luna Wolves Legion. After Horus was brought to Davin and people were crying out against certain practices of the Legion, it was proposed to rid the fleet of these dissenting voices. Tarik refused to take part in this. This earned him the resentment of key lodge members such as Chaplain Erebus of the Word Bearers, who introduced the lodge to the Luna Wolves. During the Isstvan III incident, he was one of the loyalists whom Horus hoped to purge through a fiendish virus bombardment. However, once the loyalists received word of the treachery from Saul Tarvitz of the Emperor's Children, Torgaddon was among those captains who led the resistance against the Traitor Legions. Towards the end of the grim battle, he and Garviel Loken received word that their former Mournival brothers Ezekyle Abaddon and Horus Aximand would be landing on the planet's surface to oversee the final elimination of the loyalists. Hoping to kill their betrayers and slow Horus' plans, they planned an ambush at the landing site, but Tarik nearly met his death at the hands of the reluctant but resolute Aximand, while Loken looked on in horror. Later he and Loken were saved by Garro.