Poul served under Kiy Uvanov alongside Kerril circa 2870 when Zilda's brother succumbed to Grimwade's Syndrome and fled from the sandminer. Poul believed that Uvanov had let him die so as to avoid missing a potentially lucrative storm.
The Company sent Poul undercover to work on Storm Mine 4, accompanied by D84, to investigate the threat of Taren Capel. He found Chub's body and helped the Fourth Doctor and Leela investigate, freeing them as he did not believe that they were responsible. Eventually, he himself succumbed to Grimwade's Syndrome and broke down. He, Uvanov and Lish Toos were the only ones to survive Capel and his robots. (TV: The Robots of Death)
He was later given a job in the Security Division of the Kaldor City Company with Stenton Rull and Pur Dreck. Whenever he saw a robot, he would suffer a breakdown. He was later framed for the murder of the personnel of the Docking Bays, but escaped by hiding in the Fourth Doctor and Con Bartel's flier. When he saw a corpse marker, he had a breakdown and caused the flier to crash, killing Bartel. Carnell had planned to frame Poul for the murders of Toos and Uvanov. (PROSE: Corpse Marker)
Poul began using the name "Paullus" and led the Church of Taren Capel. (AUDIO: Hidden Persuaders) He sent Elska Blayes to attack the Company and steal Capel's skull and "last testament". Whilst Blayes believed the tapes to be blank, Poul claimed to be able to hear Capel's voice in the static, (AUDIO: Taren Capel) a voice that actually belonged to the Fendahl. Poul unwittingly helped a Fendahl manifest and watched as his followers were turned into food for it. (AUDIO: Checkmate)