hiram william wolfe is george's father and the paternal grandfather of heffer, cindy, and peter. he is very old, and though his exact age is never revealed, he was in his prime in the 1940s, according to the second-season episode "cruisin'". this would put him at around 80 years old. his eyesight, coordination, and bladder control are all suffering, and he cannot chew solid food. he relies on his cane or wheelchair to get around. he hates wallabies and acts hostile towards rocko, but because of his incredibly poor eyesight he mistakenly believes that rocko is a beaver, however, he fails to realize rocko is a wallaby when he is briefly turned young while in the bermuda triangle and even risks his life to save rocko (who had become old) from drowning. he was also in love with winifred wolfe when he attended ozark tech, although she rejected him because of his self-centered attitude, however she is later impressed when hiram risks his life while trying to save rocko while their cruise ship is in the bermuda triangle and even comes to hiram's rescue.