Swooper, voiced by Jess Harnell, is a blind, elderly Pterosaur who Petrie and Guido meet in Black Rock in the TV episode "The Hermit of Black Rock". When Petrie and Guido fall into Black Rock, and try to find a way out, they come across a grobe of treestars. As they eat them, Swooper shows up and introduces himself, together with his two friends "Cliff" and "Abby" (who are in fact, rocky pillars). Guido gets the idea to have Swooper fly Petrie and himself back to the Great Valley, and upon hearing a description of the valley, Swooper decides he would like to live there, and agrees to go. Although he has hardly flown in many years, Swooper eventually becomes airborn, and with teamwork from the children, he makes it to the Great Valley with them. Swooper then resides in the Great Valley.
In the LBT-Humanization Series, Michael made a Anti-blind potion to make him see again.