Portan (nicknamed "Porters") was a young, male hare of the Long Patrol of the mountain fortress, Salamandastron, under the badger lord, Lord Mandoral Highpeak. He served as a subaltern. He was close friends with another subaltern named Quartle, and throughout their journeys with Tiria Wildlough, they were an inseparable duo.
When Tiria and Cuthbert first arrived to Salamandastron aboard the Purloined Petunia, Portan and Quartle helped her ashore. Following this, Mandoral ordered the two subalterns to attend her during her stay. Their animated natures and voracious appetites soon became quite clear to Tiria, who quickly befriended them.
When Tiria told Mandoral about her plan to sail to Green Isle and free the otterclans from the tyranny of Riggu Felis and his feral cat army, the Badger Lord told her that he would send thirty hares to assist her. Portan (and Quartle) were not among those hares selected by Captain Raphael Granden, and were upset by this news. Tiria stood up and challenged Granden, requesting that the two subalterns go to Green Isle, as well. Granden was impressed by her strength and conviction, and allowed Quartle and Portan to go along.
During the journey to Green Isle, Portan and Quartle manned the tiller and helped row the oars. Once they reached the island, they helped to decimate Riggu Felis and his army, which freed the otterclans from oppression.
Following their victory, Portan -- along with the rest of the Long Patrol -- returned to Salamandastron. Portan and Quartle became captains of the ships the Purloined Petunia and Fearless Frunk. As described in Abbess Lycian's letter to Tiria, these two ships were to anchor in the River Moss in the next spring, with plans to sail to Green Isle for a visit.