Diedrich Bader is remembered for his role as Hoss Delgado in The Grim Adventures of Billy and Mandy .
Bader is also well remembered in his voice roles as the android Zeta in the Batman Beyond spinoff , The Zeta Project , Warp Darkmatter in Buzz Lightyear of Star Command The Grim Adventures of Billy and Mandy '' .
Diedrich Bader