He is also a voice-over artist for multiple animated series ; some of his roles include : Batman on ' and ' , android Zeta in `` The Zeta Project '' , Warp Darkmatter in `` Buzz Lightyear of Star Command '' , the Fiskerton Phantom in `` The Secret Saturdays '' , and his recurring 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 Fiskerton Phantom in `` The Secret Saturdays '' , and his recurring role as Hoss Delgado in `` The Grim Adventures of Billy and Mandy '' .