Hiroki Shibata
Director
Butt Detective (2018)
Season 1
A polite and meticulous super sleuth known as the Butt Detective solves a myriad of baffling mysteries, blowing raspberries in the face of crime.
Released May 3, 2018
Episode 20 min
2+
S1E1 - Episode 1
There's a candy thief at large and Butt Detective's on the case with Brown as his backup. But the trail of the culprit leads right into a lake.
May 3, 2018, midnight
S1E2 - Episode 2
Butt Detective goes to the station, where the officers are looking into who's behind a string of burglaries. But the chief has another job for them.
May 4, 2018, midnight
S1E3 - Episode 3
After a Kaito the canine crook threatens to steal the Goddess Scarf from the museum, Butt Detective prepares to protect the precious booty.
May 5, 2018, midnight
S1E4 - Episode 4
The Black Shadow thieves are in town and the police ask Butt Detective for assistance in putting an end to their mischief before any theft occurs.
July 14, 2018, midnight
S1E5 - Episode 5
Butt Detective, Brown and Chief Maltese must get to the bottom of the Black Shadow Gang's burglaries. Later, they search for the leader's hideout.
July 21, 2018, midnight
S1E6 - Episode 6
After someone leaves a strange box at the Lucky Cat, the police show up to help only to find they're behind Butt Detective, who's already on the case.
July 28, 2018, midnight
S1E7 - Episode 7
A conversation at a feline cafe leads Butt Detective to reveal the backstory of how Brown became his assistant, going back to how he learned to talk.
Aug. 4, 2018, midnight
S1E8 - Episode 8
A potato-loving lady clad in purple knocks on Butt Detective's door and asks him to get to the bottom of a mysterious message from her ancestors.
Aug. 25, 2018, midnight
S1E9 - Episode 9
The purple potato case continues as Butt Detective, Brown and their purple companion head into the ancestors' hut. But it appears to be empty.
Dec. 1, 2018, midnight
S1E10 - Episode 10
While hearing about a forest cafe's missing manager, Butt Detective realizes he's been tailed by a persistent koala who may be after Brown's job.
Dec. 8, 2018, midnight
S1E11 - Episode 11
When the local barbershop owner complains of a spooky ghost scaring his customers, Butt Detective volunteers to get to the bottom of the mystery.
Dec. 1, 2018, midnight
S1E12 - Episode 12
Butt Detective is asked to protect the Oyagi family treasure from Kaito U, a master of disguise, but he seems to remain one step behind the thief.
Dec. 8, 2018, midnight
S1E13 - Episode 13
Master burglar Kaito U's stolen the booty from right under Butt Detective's cheeks. But our perceptive hero is not far behind the thief.
Dec. 15, 2018, midnight
S1E14 - Episode 14
Butt Detective gets a mysterious letter from a faraway jungle, but it's missing a return address on its back. He and Brown head out for an adventure.
Jan. 5, 2019, midnight
S1E15 - Episode 15
Butt Detective and Brown venture further into the dangerous ruins only to come face-to-face— or rather cheek-to-cheek—with a familiar figure.
Jan. 12, 2019, midnight
S1E16 - Episode 16
Butt Detective is expecting to be interviewed by Cafe Guide magazine, but the odd interviewer who arrives doesn't quite pass the sniff test.
Jan. 19, 2019, midnight
S1E17 - Episode 17
Just as Butt Detective is about to go to the police station to learn about a new crime-fighting tool, he receives an urgent call about a stolen item.
Jan. 26, 2019, midnight
S1E18 - Episode 18
An international crime-fighting organization has discovered Kaito U's hiding place. Before they head in, Butt Detective is brought along as backup.
Feb. 2, 2019, midnight
S1E19 - Episode 19
Butt Detective and Brown resolve to get to the bottom of rumors about a giant thief. They soon deduce what appears to be its present location.
Feb. 9, 2019, midnight
S1E20 - Episode 20
While the cops continue their investigation into the giant jewel thief, Butt Detective and Brown are hot on the heels (and cheeks) of the big bandit.
Feb. 16, 2019, midnight
S1E21 - Episode 21
Brown reports that while Butt Detective was out, someone stole his precious snack. The big-cheeked detective uses the case as a training opportunity.
Feb. 23, 2019, midnight
S1E22 - Episode 22
Koala-chan asks Butt Detective for help dealing with ghosts seen near a park she likes. Brown insists he's not scared but doesn't seem to want to go.
March 2, 2019, midnight
S1E23 - Episode 23
Butt Detective, Brown and Koala-chan are trapped behind a locked door in the supposedly-haunted mansion but he soon deduces an alternate egress.
March 9, 2019, midnight
S1E24 - Episode 24
After getting his cheeks shaved, Butt Detective accepts a job from the police to return a stolen item to its owner. But no one knows who it is.
March 16, 2019, midnight
S1E25 - Episode 25
Butt Detective investigates a robbery at the Elvis Grizzly museum. The case darkens as the clues lead back to one of the police's own K-9 officers.
March 23, 2019, midnight
S1E26 - Episode 26
When a missing bag turns back up filled with cash, Butt Detective must reconstruct a series of unintentional exchanges before two lovebirds depart.
March 30, 2019, midnight
S1E27 - Episode 27
A wealthy banker whose daughter has been kidnapped calls on Butt Detective. The criminal is demanding his famous Rainbow Diamond, but it's missing.
July 6, 2019, midnight
S1E28 - Episode 28
Butt Detective's search for the Rainbow Diamond is almost at an end. But some wall-writings indicate that actually picking it up might not be so easy.
July 13, 2019, midnight
S1E29 - Episode 29
Kaito U's back and he's threatening to steal a porcine spa's "greatest treasure." Butt Detective and the K-9s try to deduce what it could be.
July 20, 2019, midnight
S1E30 - Episode 30
Butt Detective and Brown head to a local festival, where a troublemaker who looks just like the double-cheeked detective has been making mischief.
July 27, 2019, midnight
S1E31 - Episode 31
Butt Detective uses the cards and coin that his doppelganger left behind to locate him. Meanwhile, Brown helps his new female friend find her ribbon.
Aug. 3, 2019, midnight
S1E32 - Episode 32
A new investigator claims to be the best and challenges Butt Detective to a public detective match. But our hero senses something amiss.
Aug. 10, 2019, midnight
S1E33 - Episode 33
There's trouble at the KNK bank and the police ask Butt Detective to take the job. But soon Carrot Horse butts in, complicating the situation.
Aug. 17, 2019, midnight
S1E34 - Episode 34
Butt Detective receives another request from rich banker Kamenokoji. His daughter Midori is up to something odd and he wants the sleuth to tail her.
Aug. 24, 2019, midnight
S1E35 - Episode 35
The K-9 cops and a gang of sparrow laborers ask Butt Detective to look into what's behind a series of spooky ghost-sightings at an old clock tower.
Aug. 31, 2019, midnight
S1E36 - Episode 36
After feline thieves nab a special cane, Butt Detective is on the case. He's joined by his double-cheeked dad, who has a history with the stolen item.
Sept. 7, 2019, midnight
S1E37 - Episode 37
Brown and his koala pal star in a new detective movie. But behind the scenes, Butt Detective must solve a real case involving some thieving monkeys.
Sept. 14, 2019, midnight
S1E38 - Episode 38
Butt Detective arrives at Castle Wolf to protect its booty from Kaito U. But he gets the impression there's something not quite right with his host.
Sept. 21, 2019, midnight
S1E39 - Episode 39
Butt Detective arrives at the treasure only to see it stolen by Kaito U. But then a second Kaito U appears and each claims that the other is a phony.
Sept. 28, 2019, midnight
S1E40 - Episode 40
Butt Detective and Brown head to a ski slope to investigate rumors of a monstrous yeti, who is behind the resort’s sudden drop in customers.
April 4, 2020, midnight
S1E41 - Episode 41
Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.
April 11, 2020, midnight
S1E42 - Episode 42
Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation.
April 18, 2020, midnight
S1E43 - Episode 43
Chief Maltese butts heads with his rival, Chief Chihuahua, at a restaurant. After something goes missing, they compete to see who can solve the case.
April 25, 2020, midnight
S1E44 - Episode 44
Butt Detective uses tricky tactics to give Brown a lesson in sleuthing. Later, the local kids surprise Brown by giving him a case of his own to solve.
May 2, 2020, midnight
S1E45 - Episode 45
Butt Detective and Brown receive a mysterious visitor. Once they deduce his identity, he asks them to help stop Kaito U from stealing his treasure.
May 9, 2020, midnight
S1E46 - Episode 46
Butt Detective and the contestants face their next trial: a giant, menacing snake. Later, Kaito U finally shows himself and tries to steal the veil.
May 16, 2020, midnight
S1E47 - Episode 47
Kaito U enters the infamously inescapable Orinona Prison and its straight-arrow warden vows to reform him. But Kaito U isn't about to change his ways.
May 23, 2020, midnight
S1E48 - Episode 48
Kaito U and his crow companion escape from their prison cell, but they're not out of danger yet. Their first stop is the guards' break room.
May 30, 2020, midnight
S1E49 - Episode 49
While Butt Detective and the canine cops review a string of apple thefts, a journalist bursts in to report his camera was stolen by a spooky culprit.
June 6, 2020, midnight
S1E50 - Episode 50
After two painful cavities lead Brown and Koala-chan to meet at the dentist's office, a canine detective asks them to find his 11 missing puppies.
June 13, 2020, midnight
S1E51 - Episode 51
The canine cops reveal a new crime-fighting invention that they're very proud of. But it reminds Brown of the destruction caused by their last one.
June 20, 2020, midnight
S1E52 - Episode 52
Kaito U is going after the opera house's treasure, so Butt Detective and Brown pay a visit. One of the actors they see on stage is awfully familiar.
June 27, 2020, midnight
S1E53 - Episode 53
None
April 3, 2021, midnight
S1E54 - Episode 54
None
April 10, 2021, midnight
S1E55 - Episode 55
None
April 17, 2021, midnight
S1E56 - Episode 56
None
April 24, 2021, midnight
S1E57 - Episode 57
None
May 1, 2021, midnight
S1E58 - Episode 58
None
May 8, 2021, midnight
S1E59 - Episode 59
None
May 15, 2021, midnight
S1E60 - Episode 60
None
May 22, 2021, midnight
S1E61 - Episode 61
None
May 29, 2021, midnight
S1E62 - Episode 62
None
June 5, 2021, midnight
S1E63 - Episode 63
None
June 12, 2021, midnight
S1E64 - Episode 64
None
June 19, 2021, midnight
S1E65 - Episode 65
None
June 26, 2021, midnight
S1E66 - Episode 66
None
April 9, 2022, midnight
S1E67 - Episode 67
None
April 16, 2022, midnight
S1E68 - Episode 68
None
April 23, 2022, midnight
S1E69 - Episode 69
None
April 30, 2022, midnight
S1E70 - Episode 70
None
May 7, 2022, midnight
S1E71 - Episode 71
None
May 14, 2022, midnight
S1E72 - Episode 72
None
May 21, 2022, midnight
S1E73 - Episode 73
None
May 28, 2022, midnight
S1E74 - Episode 74
None
June 4, 2022, midnight
S1E75 - Episode 75
None
June 11, 2022, midnight
S1E76 - Episode 76
None
June 18, 2022, midnight
S1E77 - Episode 77
None
June 25, 2022, midnight
S1E78 - Episode 78
None
July 2, 2022, midnight
S1E79 - Episode 79
None
April 8, 2023, midnight
S1E80 - Episode 80
None
April 15, 2023, midnight
S1E81 - Episode 81
None
April 22, 2023, midnight
S1E82 - Episode 82
None
April 29, 2023, midnight
S1E83 - Episode 83
None
May 6, 2023, midnight
S1E84 - Episode 84
None
May 13, 2023, midnight
S1E85 - Episode 85
None
May 20, 2023, midnight
S1E86 - Episode 86
None
May 27, 2023, midnight
S1E87 - Episode 87
None
April 6, 2024, midnight
S1E88 - Episode 88
None
April 13, 2024, midnight
S1E89 - Episode 89
None
April 20, 2024, midnight
S1E90 - Episode 90
None
April 27, 2024, midnight
S1E91 - Episode 91
None
May 4, 2024, midnight
S1E92 - Episode 92
None
May 11, 2024, midnight
S1E93 - Episode 93
None
May 18, 2024, midnight
S1E94 - Episode 94
None
May 25, 2024, midnight
S1E95 - Episode 95
None
June 1, 2024, midnight
S1E96 - Episode 96
None
June 8, 2024, midnight
S1E97 - Episode 97
None
June 15, 2024, midnight
S1E98 - Episode 98
None
June 22, 2024, midnight
S1E99 - Episode 99
None
June 29, 2024, midnight
S1E100 - Episode 100
None
July 6, 2024, midnight
S1E101 - Episode 101
None
July 13, 2024, midnight
S1E102 - Episode 102
None
Oct. 5, 2024, midnight
S1E103 - Episode 103
None
Oct. 12, 2024, midnight
S1E104 - Episode 104
None
Oct. 19, 2024, midnight
S1E105 - Episode 105
None
Oct. 26, 2024, midnight
S1E106 - Episode 106
None
Nov. 2, 2024, midnight
S1E107 - Episode 107
None
Nov. 9, 2024, midnight
S1E108 - Episode 108
None
Nov. 16, 2024, midnight
S1E109 - Episode 109
None
April 5, 2025, midnight
S1E110 - Episode 110
None
April 12, 2025, midnight
S1E111 - Episode 111
None
April 19, 2025, midnight
S1E112 - Episode 112
None
April 26, 2025, midnight
S1E113 - Episode 113
None
May 3, 2025, midnight
S1E114 - Episode 114
None
May 10, 2025, midnight
S1E115 - Episode 115
None
May 17, 2025, midnight
S1E116 - Episode 116
None
May 24, 2025, midnight
S1E117 - Episode 117
None
Oct. 4, 2025, midnight
S1E118 - Episode 118
None
Oct. 11, 2025, midnight
S1E119 - Episode 119
None
Oct. 18, 2025, midnight
S1E120 - Episode 120
None
Oct. 25, 2025, midnight
S1E121 - Episode 121
None
Nov. 1, 2025, midnight
S1E122 - Episode 122
None
Nov. 8, 2025, midnight
S1E123 - Episode 123
None
Nov. 15, 2025, midnight
NHK Educational TV
20 min/ep
2460 min
May 3, 2018
Nov. 15, 2025, midnight
Returning Series
NR / 2+
Action
Action
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