Grumpy Young Men Jimmy, Carl, and Sheen use Jimmy's Metabolic Accelerator so they can be old enough to buy a violent video game. The machine works a little too well, and the boys end up as senior citizens. Inventions: Metabolic Accelerator, Experimental Truth Syrum
Elenco: Carolyn Lawrence , Crystal Scales , Candi Milo , Debi Derryberry , Jeffrey Garcia , Megan Cavanagh , Frank Welker , Andrea Martin , Mark DeCarlo , Rob Paulsen , Phil LaMarr , Jeff Bennett , Tom Kenny , Maurice LaMarche , Kevin Michael Richardson , Kath Soucie , Daran Norris , Jim Cummings , Corey Burton , James Belushi .