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The Best Episodes of The Grim Adventures of Billy and Mandy Season 1

Every episode of The Grim Adventures of Billy and Mandy Season 1 ranked from best to worst. Discover the Best Episodes of The Grim Adventures of Billy and Mandy Season 1!

Binge this in 2h 25m•Peaking at 8.3/10

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.

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Cartoon Network
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Episode Rankings

  1. #1 Fan Favorite
    The Grim Adventures of Billy and Mandy Season 1 Episode 12 - Grim or Gregory?
    8.3/10(143 votes)

    S1:E12

    While on a Halloween excursion, Grim finds himself mistaken for a young boy named Gregory. Now it’s up to Billy and Mandy to return Gregory to his mom and retrieve their wayward Grim.

    Director:Brian Hogan
    Writer:Gord Zajac

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  2. The Grim Adventures of Billy and Mandy Season 1 Episode 10 - Grim vs. Mom
    8.2/10(144 votes)

    S1:E10

    Billy’s Mom returns, bent on taking vengeance on Grim!

    Director:Brian Hogan
    Writer:Gord Zajac

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  3. The Grim Adventures of Billy and Mandy Season 1 Episode 9 - A Dumb Wish
    8.0/10(179 votes)

    S1:E9

    Billy and Mandy discover that Grim's mom is a genie. Mandy is soon in control of the only remaining wish, with Grim and Billy desperately trying to curry favor.

    Director:Brian Hogan
    Writer:Paul McEvoy

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  4. The Grim Adventures of Billy and Mandy Season 1 Episode 5 - Mortal Dilemma
    7.9/10(77 votes)

    S1:E5

    Grim misses his job and goes out on the town hoping to recapture some of the glory of his past. After rescuing a doomed skateboarder, Grim begins to question his purpose in the universe.

    Director:Brian Hogan
    Writer:Amy Keating Rogers

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  5. The Grim Adventures of Billy and Mandy Season 1 Episode 1 - Meet the Reaper
    7.8/10(22 votes)

    S1:E1

    Billy and Mandy, two neighbor kids, play a game with the Grim Reaper for the soul of a sick hamster.

    Director:Maxwell Atoms
    Writer:Maxwell Atoms

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  6. The Grim Adventures of Billy and Mandy Season 1 Episode 13 - Something Stupid This Way Comes
    7.8/10(116 votes)

    S1:E13

    Nergal returns, trying to win friends with a giant carnival. Billy takes up his cause, revealing to Nergal the five C’s of friendship.

    Directors:John McIntyre, Robert Alvarez
    Writer:Craig Lewis

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  7. The Grim Adventures of Billy and Mandy Season 1 Episode 2 - Skeletons in the Water Closet
    7.6/10(7 votes)

    S1:E2

    Billy's overprotective mom discovers the Grim Reaper sleeping in her son's room.

    Director:Dave Brain
    Writer:Greg Miller

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  8. The Grim Adventures of Billy and Mandy Season 1 Episode 11 - Tastes Like Chicken
    7.5/10(125 votes)

    S1:E11

    After some shoddy detective work, Billy and Grim deduce that Mandy is a cannibal and has eaten everyone in the neighborhood! Billy decides to confront Mandy before she eats him!

    Directors:Brian Hogan, John McIntyre
    Writer:Gord Zajac

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  9. The Grim Adventures of Billy and Mandy Season 1 Episode 8 - Recipe for Disaster
    7.4/10(5 votes)

    S1:E8

    After Billy eats all of the Person Scout cookies the kids are supposed to be selling, Grim saves the day with his Great Aunt's secret recipe. The whole town discovers that some recipes should be kept secret.

    Director:Dave Brain
    Writer:Maxwell Atoms

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  10. The Grim Adventures of Billy and Mandy Season 1 Episode 6 - Get Out of My Head!
    7.0/10(1 votes)

    S1:E6

    Grim teaches Billy how to take control of someone else's body. Billy, unfortunately, makes the mistake of trying his new skill out on Mandy.

    Director:Dave Brain
    Writer:Maxwell Atoms

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  11. The Grim Adventures of Billy and Mandy Season 1 Episode 7 - Fiend Is Like Friend Without the 'R'
    7.0/10(1 votes)

    S1:E7

    Billy and Mandy are kidnapped by another supernatural creature. Grim must decide if he'd rather rescue his "friends" or just relax in a lawn chair.

    Director:Brian Hogan
    Writer:Craig Lewis

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  12. The Grim Adventures of Billy and Mandy Season 1 Episode 18 - Billy's Growth Spurt
    7.0/10(1 votes)

    S1:E18

    Billy eats too much junk food and gets a small growth on his back. It grows and grows until it becomes an evil pint-sized Billy! Can Mandy and Grim get rid of the evil growth before it terrorizes the neighborhood?!

    Director:Brian Hogan
    Writer:Gord Zajac

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  13. The Grim Adventures of Billy and Mandy Season 1 Episode 19 - Billy & the Bully
    7.0/10(1 votes)

    S1:E19

    Billy runs afoul of Sperg, the school bully. With the help of Mandy and Grim, will Billy get Sperg to leave him alone?

    Directors:John McIntyre, Robert Alvarez
    Writer:Gord Zajac

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  14. The Grim Adventures of Billy and Mandy Season 1 Episode 3 - Opposite Day
    0.0/10(0 votes)

    S1:E3

    Grim's patience and sanity are put to the test as he is forced to deal with an unconventional holiday where everything means the reverse of what it normally does.

    Director:Dave Brain
    Writer:Maxwell Atoms

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  15. The Grim Adventures of Billy and Mandy Season 1 Episode 4 - Look Alive!
    0.0/10(0 votes)

    S1:E4

    The Grim Reaper confesses to a secret desire to be a swimsuit model. Can Billy and Mandy put a little bit of life into the old guy and make his dream come true?

    Director:Brian Hogan
    Writer:Maxwell Atoms

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  16. The Grim Adventures of Billy and Mandy Season 1 Episode 14 - A Grim Surprise
    0.0/10(0 votes)

    S1:E14

    Billy and Grim plan a surprise birthday party for Mandy, only to succumb to a surprise of their own.

    Directors:John McIntyre, Robert Alvarez
    Writer:Rob Desales

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  17. The Grim Adventures of Billy and Mandy Season 1 Episode 15 - Beasts and Barbarians
    0.0/10(0 votes)

    S1:E15

    Billy and Irwin are addicted to the video game “Beasts & Barbarians.” Mandy and Grim work to cure Billy and Irwin of their addiction by venturing to another dimension to give Billy and Irwin a taste of “the real thing.”

    Director:Dave Brain
    Writer:Gord Zajac

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  18. The Grim Adventures of Billy and Mandy Season 1 Episode 16 - Hoss Delgado: Spectral Exterminator
    0.0/10(0 votes)

    S1:E16

    Grim must evade extermination at the hands of Hoss Delgado, Spectral Exterminator!

    Director:Brian Hogan
    Writer:Gord Zajac

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  19. The Grim Adventures of Billy and Mandy Season 1 Episode 17 - To Eris Human
    0.0/10(0 votes)

    S1:E17

    Eris, the Goddess of Chaos, arrives at the Endsville mall. She takes Mandy under her wing while Grim pines over his unrequited love for Eris.

    Director:Dave Brain
    Writer:Gord Zajac

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  20. The Grim Adventures of Billy and Mandy Season 1 Episode 20 - Big Trouble in Billy's Basement
    0.0/10(0 votes)

    S1:E20

    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!

    Directors:John McIntyre, Robert Alvarez
    Writer:Gord Zajac

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  21. The Grim Adventures of Billy and Mandy Season 1 Episode 21 - Tickle Me Mandy
    0.0/10(0 votes)

    S1:E21

    Mandy goes away for the weekend. Billy is a wreck without Mandy. So Grim makes Billy a new Mandy out of old toys. But this new Mandy is not all she’s cracked up to be.

    Director:Brian Hogan
    Writer:Gord Zajac

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  22. The Grim Adventures of Billy and Mandy Season 1 Episode 22 - Little Rock of Horrors
    0.0/10(0 votes)

    S1:E22

    Billy befriends a giant brain eating meteor in his backyard.

    Director:Robert Alvarez
    Writer:Gord Zajac

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  23. The Grim Adventures of Billy and Mandy Season 1 Episode 23 - Dream a Little Dream
    0.0/10(0 votes)

    S1:E23

    Grim, Billy and Mandy eat some bad pizza, resulting in a series of bizarre and mind bending dreams.

    Director:Dave Brain
    Writer:Gord Zajac

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Season 1 Ratings Summary

"Grim or Gregory?" is the best rated episode of "The Grim Adventures of Billy and Mandy" season 1. It scored 8.3/10 based on 143 votes. Directed by Brian Hogan and written by Gord Zajac, it aired on 7/26/2002. This episode is rated 0.1 points higher than the second-best, "Grim vs. Mom".