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The Grim Adventures of Billy and Mandy S1E20 — Big Trouble in Billy's Basement

The Grim Adventures of Billy and Mandy•Season 1•Episode 20

Big Trouble in Billy's Basement

Oct 11, 2002

Billy steals Grim’s “bad book” and accidentally brings about the beginning of an apocalypse. Hoss Delgado returns to lend a hand as Grim and Mandy try to stop Billy from bringing existence to an end!

Directed byJohn McIntyre, Robert Alvarez

Written byGord Zajac

Previous episodeE19 · Billy & the Bully Next episodeE21 · Tickle Me Mandy

Seasons7

All 1 2 3 4 5 6 7

Cast4

Greg Eagles

Greg Eagles

Grim (voice)

Richard Steven Horvitz

Richard Steven Horvitz

Billy (voice)

Grey DeLisle

Grey DeLisle

Mandy (voice)

Vanessa Marshall

Vanessa Marshall

Irwin (voice)

Crew4

J

John McIntyre

Director

Robert Alvarez

Robert Alvarez

Director

Christopher McCulloch

Christopher McCulloch

Storyboard Artist

G

Gord Zajac

Writer

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Episode Summary

"Big Trouble in Billy's Basement" is episode 20 of The Grim Adventures of Billy and Mandy season 1. Directed by John McIntyre, Robert Alvarez and written by Gord Zajac, it aired on October 11, 2002.

Next: E21 · Tickle Me Mandy Best of Season 1