Duck family (Disney) strip, Della writes to Donald that the boys had placed a firecracker under their father's chair as a prank and that their father had been sent to the hospital. This was the reason why the boys first showed up at Donald's house. Thereafter the father is generally assumed to have disappeared. In "The Richest Duck in the World", when Scrooge mentions that the few family members he had had disappeared, the boys respond "We know how "that" feels!" Donald's cousin Fethry Duck was created for the Disney Studio Program by Dick Kinney and Al Hubbard and was first used in
Donald Duck in various Disney projects, such as "The Reluctant Dragon" (1941) and the "Disneyland" television show (1959). For this latter show, Donald's uncles Ludwig von Drake (1961) and Scrooge McDuck (1967) were then created in animation. In "Who Framed Roger Rabbit", Donald has a piano duel scene with his Warner Brothers counterpart and rival Daffy Duck voiced by Mel Blanc. Donald has since appeared in several different television shows and (short) animated movies. He played roles in "The Prince and the Pauper" and made a cameo appearance in "A Goofy Movie." Donald had a rather small part in the animated television