Plank is the tiefling fighter played by Zach.
His full name is Rigor Morris, but he goes by Plank. He is 28 years old at the beginning of the story.
He is 5'4 and of a stocky, muscular build, with red skin. Like all tieflings, he has horns, but his are significantly shorter than average and he is self-conscious about them. During his time in The Clungeon, it is revealed that he has hooves.
Plank's randomly rolled ideal is The Greater Good.
When living on the Devil's Arsehole, Plank worked as a blacksmith. In his first explanation of his history to the group, he stated that he had accidentally used some magical metal and created a weapon that killed a large number of people, including a large number of the enemy.