Very little is known about the Yeti Tubby since he is currently an infected: he does not seem to have any personality. However, he shows signs of intelligence, such as having the ability to imitate an innocent and childlike voice to lure his prey. He also appears to be able to reason, for it is said that he has accepted to spare the droid that is now serving him. These listed traits make him the smartest example among known infected teletubbies.

