He provided the voice of Kilowog on various episodes of Justice League and Justice League Unlimited .
Haysbert was the first actor to portray DC Comics character Kilowog , a member of the Green Lantern Corps , in a medium outside of comics .
Haysbert provided the voice of member on various episodes of Justice League and Justice League Unlimited .
Haysbert was the first actor to portray DC Comics character Kilowog , a member of the Green Lantern Corps , in a medium outside of comics .