The next year , he also appeared in the 8th - season episode of American Dad !
Continuing with voice work , Herzog played Walter Hotenhoffer ( formerly known as Augustus Gloop ) in the Simpsons episode The Scorpion 's Tale which aired in March 2011 .
The next year , Herzog also appeared in the 8th - season episode of American Dad !
Continuing with voice work , Herzog played Walter Hotenhoffer ( formerly known as Augustus Gloop ) in the Simpsons episode The Scorpion 's Tale which aired in March 2011 .