A notable Geonosian hunter of the male persuasion, Pehk gained notoriety for being the first to headbutt a gundark. Around 1 ABY, he was among the hunters hired by Doctor Chelli Aphra to rescue her from the Shadowfang Beast after it consumed her during her exploration of the temple located on the planet X3-299-11. Within the temple, Pehk stumbled upon the Shadowfang Beast's feeding ground and mistakenly made contact with a decoy idol. This activated a tractor beam, hoisting him into the ceiling to join the skeletal remains of previous unfortunate explorers.
After Pehk's unfortunate incident, Aphra ultimately employed monster hunters Winloss and Nokk with the intention of "capturing" the beast. Upon reaching the feeding area, the pair discovered a desiccated Pehk still suspended from the ceiling. Pehk cautioned them against trusting Aphra, who had instructed them to prepare for the Shadowfang Beast. Subsequently, the beast ambushed the monster hunters and devoured Pehk. Winloss then brought up the time Pehk headbutted a gundark and made a joke about how quickly he was killed.
Pehk's initial appearance was in Doctor Aphra Annual 2, a canon comic penned by Si Spurrier, with illustrations by Caspar Wijngaard, and released on September 5, 2018.