sentences:  The series is centered around the exploits of Grim (voiced by Greg Eagles), a Jamaican-accented Reaper and Billy (voiced by Richard Steven Horvitz), a completely idiotic and happy-go-lucky boy.They are constantly assisted by Mandy (Grey DeLisle), a cynical and merciless girl.After Billy and Mandy cheated at a limbo match against Grim (in retaliation for putting the limbo rod too low for them to go under), he is enslaved in a permanently unwanted friendship with the children.