The Grim Adventures of Billy and Mandy Wiki
One Crazy Summoner
One Crazy Summoner Titlecard.png
Series The Grim Adventures of Billy & Mandy
Season 5
Production code 516
Writer Maxwell Atoms

Michael Diederich

Broadcast information
Cartoon Network US Premiere August 5, 2005
Paired with Guess What’s Coming to Dinner?
Chronological information
My Fair Mandy
Guess What’s Coming to Dinner?

One Crazy Summoner is the 16th episode from season 5 of The Grim Adventures of Billy & Mandy.


Nigel Planter needs help from Grim, Billy, Mandy and Granny Grim to win a girl's heart. Through a series of trials, love potions, spells, and the rivalry between Nigel and Dorko Mouthwad for Herfeffine Heferfefer.


The episode begins with Gladys and Harold confronting a giant purple anaconda in the kitchen. A confused Mandy walks in, then is directed to the living room where Billy and Grim are hanging out. The anaconda encircles the two naïve parents and begins to squeeze them. In the living room, Billy and Grim are playing a video game. Grim tells Mandy that the anaconda came out of his supernatural trunk, which Billy was rummaging through yet again. He refuses to help Gladys and Harold. Mandy unplugs the television and turns off the video game, then tells her two friends that they need to take care of the anaconda before it consumes Billy’s parents. Billy suggests enlisting the help of Nigel Planter, who has the ability to talk to snakes.

Billy leads Mandy into the bathroom and begins talking to his toilet, claiming that that’s how wizards communicate. To Mandy’s surprise, Billy gets a response. He tells the disembodied voice he wants to speak to Nigel. Moments later, a giant hand comes out of the toilet and pulls Billy and Mandy in. Grim walks in to use the bathroom but is also pulled in.

The trio washes up on shore and meets with Nigel, who they notice is much older and taller looking, thanks to puberty. Mandy tells Nigel that they need him to come back to Billy’s house with them to talk to a giant anaconda and stop it from eating Gladys and Harold. Nigel tells them he can’t talk to snakes due to being a “partial tongue,” but he can talk to snacks.

Mandy walks around to try and find Grim so they can go back home. She, Billy and Nigel stumble upon Toadblatt’s School of Sorcery, which is now located on a hill overlooking the sea. Every summer, the school grounds is transformed into a beach for summer school. Nigel’s reason for being here is for failing a class, remedial hexing. Dean Toadblatt warns the young sorcerer he’ll be there for the rest of his life if he keeps up the bad grades, just like his father, who is taking the same class (but passes).

Back on the beach, Grim is in his bathing trunks and trying to relax on a beach chair. Billy interrupts this by running down the hill and crashing into him. Nigel and Mandy arrive on a broomstick, to which he reveals the reason he summoned the trio there: to win the heart of the most beautiful witch at the school, Herfeffine Heferfefer. His only problem is Dorko Malfly, his arch nemesis and Herfeffine’s apparent love interest.

As Herfeffine is observing Dorko surfing on his broomstick, Grim, Billy and Nigel hide behind the rocks, Nigel nervously waiting to make his move on the redheaded witch. He walks up to Herfeffine and introduces himself, to which she tells him to move away. When Nigel persists, Dorko shows up on his broomstick, kicks sand in his face, then turns him into a frog. Billy then suggests to Nigel that he gives her a noogie or throws a kickball at her. Mandy suggests a much more sensible idea: using a love potion on Herfeffine. Grim mentions his grandmother, Granny Grim, who makes excellent love potions. Just then, she immediately washes up on shore and hands Nigel a love potion.

Nigel again approaches Herfeffine, this time with the love potion in hand and asks her to drink it. Dean Toadblatt shows up, thinking the potion is offered to him as a beverage, and drinks it instead. He looks across the beach and sees Squidhat playing a guitar for beachgoers. The two of them instantly fall in love upon gazing at each other. They ride away on a broomstick with a sign that says, “Just Married.”

Billy’s next suggestion is giving Herfeffine a box of enchanted chocolates. Granny Grim washes up on shore again to give Nigel the chocolates. Chocolates in hand, Nigel approaches the attractive witch once more, who is getting ready to leave the beach. She ignores him this time. Dorko shows up to turn Nigel into a smelly buffalo with a top hat. Shortly after, Billy and a normal-looking Nigel eat the chocolates themselves. Nigel then drinks the love potion and falls in love with a piece of chocolate in his hand. The chocolate comes to life and runs away in sheer terror from Nigel into the ocean. Grim then recalls that the three of them came to Toadblatt’s for a reason, but his mind is blanking.

The episode ends back in Billy’s kitchen with Gladys and Harold completely consumed by the giant anaconda.


  • Story by: Maxwell Atoms, Mike Diederich
  • Storyboard by: Mike Diederich
  • Art direction: Rae McCarson
  • Directed by: Juli Hashiguchi


  • Dorko Malfly is a parody of Draco Malfoy from the Harry Potter franchise, while Herfeffine Heferfefer may be a parody of Hermione Granger.
  • Herfeffine Heferfefer is voiced by Tara Strong in this episode.
  • When Billy was giving Nigel ideas on how to get Herfeffine to like him, he suggests giving her a noogie or throwing a kickball at her, explaining that that's what the boys at his school do when they like a girl.
    • This is an obvious reference of the tendency of young boys, like those in elementary school, bullying girls they have a crush on.
  • Even though Nigel's father was seen, in his next appearance, he's said to be dead.
    • It is possible that he died sometime after this episode.
  • This is the last episode to feature Dean Toadblatt with his original design and voice actor.
  • This is the last episode to feature the Squidhat.
  • Dean Toadblatt and the Squidhat's wedding marks the only open portrayal of homosexuality in the series. 
    • However, this is not the first Cartoon Network show to have openly gay romance onscreen. The others are I Am Weasel (Weasel and Baboon's wedding) and Courage the Cowardly Dog (Kitty and Bunny).