The Grim Adventures of Billy and Mandy - Season 1 Episode 12
It's Halloween, Billy, Mandy and Grim go trick-or-treating. Grim mistakes a woman for Atrocia, the host of the all-night Halloween marathon on TV and goes to talk to her. Upon looking at her face, Grim realizes his mistake; however, the woman mistakes Grim for her son, Gregory, and takes him home Gregory is now Grim, and does not have a stomach. At the same time, Billy mistakes Gregory for Grim and he and Mandy take him with them. In the end, Billy and Mandy take Gregory back to his mother and Grim goes back with them.
First Air Date : 2001-08-24
Last Air date : 2007-11-09
Runtime : 57 minutes
Genre : Animation, Comedy, Kids
Cast : Greg Eagles, Richard Steven Horvitz, Grey DeLisle, Vanessa Marshall
Crew : Brian A. Miller (Executive Producer), Gregory Hinde (Music), Drew Neumann (Music), Jay Bastian (Executive Producer)
Quality : 
Subtitles :
- Season 1 : Episode 12001-08-24
- Season 1 : Episode 22001-08-24
- Season 1 : Episode 32001-08-31
- Season 1 : Episode 42001-08-31
- Season 1 : Episode 52001-09-07
- Season 1 : Episode 62001-09-07
- Season 1 : Episode 72001-10-05
- Season 1 : Episode 82001-10-12
- Season 1 : Episode 92001-10-19
- Season 1 : Episode 102002-07-19
- Season 1 : Episode 112002-07-19
- Season 1 : Episode 122002-07-26
- Season 1 : Episode 132002-07-26
- Season 1 : Episode 142002-08-02
- Season 1 : Episode 152002-08-02
- Season 1 : Episode 162002-08-09
- Season 1 : Episode 172002-08-09
- Season 1 : Episode 182002-10-04
- Season 1 : Episode 192002-10-04
- Season 1 : Episode 202002-10-11
- Season 1 : Episode 212002-10-11
- Season 1 : Episode 222002-10-18
- Season 1 : Episode 232002-10-18
