Eighter is a good natured and peaceful robot, seen as defective by the Red Ribbon Army. His steadfast refusal to fight in situations that Goku usually finds himself in is challenged when Goku himself is injured, giving him a fired retaliating move to punch out whoever beats up his new friend.
Mike McFarland does this deep voice that I really think was because the design was basically Monster of Frankenstein and not due to the personality of the character at all. He gets the peaceful nature down but the voice is ehhh..
Jeremiah Yurk sounds really put on and fake. It doesnt really help that he does this forced growling voice that just enunciates how miscast he was as ol Eighter.
Dale Wilson I think could have worked if DB got that far in Vancouver, but the voice he has here is rather throwaway and nothing too memorable.