Synopsis

The exploits of the Grim Reaper, who has been forced into being the best friend of two children. A spin-off of the show Grim & Evil.

In addition, two songs were made for the show by Aurelio Voltaire, the episode "Little Rock of Horrors", which parodies the musical Little Shop of Horrors, features a song titled "Brains!" and, in Billy & Mandy's Big Boogey Adventure, the song "Land of the Dead" is played in the opening credits.

The season two episode "Battle of the Bands" also featured the song "Darkness" by gothic industrial rock band SPF-1000.

Common Sense Media gave the show a 3/5 star rating and stated that it has "goofy punchlines and obscure cultural references" and recommends the viewer age be at least 9 years old.

Entertainment Weekly ranked The Grim Adventures of Billy & Mandy number nine on its list of "10 Best Cartoon Network Shows" in 2012.

Grim is miserable in the first days of his servitude, at times taking pleasure at the fantasy of killing them.

However, he gradually adapts to the new life and even grows to care for Billy and Mandy, if only somewhat.