Human Strickler
This article contains canon information corresponding to the Tales of Arcadia franchise. That means all information in this article is true and has appeared/been validated officialy on-screen.

Señor Karl Uhl is a Spanish teacher (despite being Austrian) at Arcadia Oaks High



How he found a career is unknown, but he has hints of various races within his blood. Most Europeans today are at the very least bilingual, if not trilingual.

Part One (Trollhunters)

Part Two (Trollhunters)

Part Three (Trollhunters)

Part One (3 Below)

Physical Appearance

He was born an Austrian but has quite the Aryan look, blond-haired, blue-eyed, and the appearance of a strong, well-built body (applying to human, standards, anyway).


Señor Uhl is as unforgiving as he is clueless. Though it is often with a great error that fans say he is a heartless monster of a teacher, he sports the basic support for his school and for his town, and he genuinely cares about the needs and educational experience of his students. The only strange thing about him is his rather strong bond with his...pick-up truck?

However, in 3 Below, he begins to display a more humane side when sympathizes with Aja an Krel when they tell him that they had escaped the chaos of a coup in their "home country", vowing that Arcadia Oak High will be a haven for them until they can return home. He also was disgusted when Birdie was saying many micro-atoms and racy comments towards Aja and Krel.


Lenora Janeth

They seem to get along well. 

Coach Lawrence

Bertha "Birde" Flanagan

Señor Uhl seems to have a mutual yet rocky relationship with Bertha Flanagan. He became immediately disgusted by her when she began accusing Aja and Krel of being illegal aliens and how she kept saying racy comments towards them. Uhl seemed quite pleased when she disappears, not knowing that she was an alien sent to kill Aja and Krel and was killed by Varvatos.

Aja and Krel Tarron

At first, Uhl saw Aja and Krel as troublemakers, but when Aja explains that they came to Arcadia because their "home country" got caught in a coup, he shows them compassion and vows to make Arcadia Oaks High a safe haven for them. He even defends the siblings against Birde's harsh, racy words when she accuses them of being illegal aliens

Episode Appearances

Trollhunters Part 1
"Becoming: Part 1"
"Becoming: Part 2"
"Wherefore Art Thou, Trollhunter?"
"Gnome Your Enemy"
"Waka Chaka!"
"Win, Lose, or Draal"
"To Catch A Changeling"
"Adventures in Trollsitting"
"Bittersweet Sixteen"
"Young Atlas"
"Recipe for Disaster"
"Claire and Present Danger"
"The Battle of Two Bridges"
"Return of the Trollhunter"
"Roaming Fees May Apply"
"Blinky's Day Out"
"The Shattered King"
"Where is my Mind?"
"Party Monsters"
"It's About Time"
"Angor Management"
"A Night to Remember"
"Something Rotten This Way Comes"
Trollhunters Part 2
"Escape from the Darklands"
"Grand Theft Otto"
"Hiss Hiss, Bang Bang"
"Hero with a Thousand Faces"
"Just Add Water"
"The Reckless Club"
"Mistrial and Error"
"In the Hall of the Gumm-Gumm King"
Trollhunters Part 3
"A Night Patroll"
"Arcadia's Most Wanted"
"Bad Coffee"
"So I'm Dating a Sorceress"
"The Exorcism of Claire Nunez"
"Parental Guidance"
"The Oath"
"For the Glory of Merlin"
"In Good Hands"
"A House Divided"
"The Eternal Knight: Part 1"
"The Eternal Knight: Part 2"
3 Below Part 1
"Terra Incognita Part One"
"Terra Incognita Part Two"
"Mind Over Matter"
"Beetle Mania"
"Collision Course"
"D'aja Vu"
"Flying the Coop"
"Party Crashers"
"Lightning in a Bottle"
"The Arcadian Job"
"Truth Be Told"
"Last Night on Earth"
"Bad Omen"


  • In "Flying the Coop," it is revealed that Señor Uhl's first name is Karl, which is of German origin, despite him being Austrian. 


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Arcadia Oaks-pedia has a collection of images and media related to Señor Uhl which can be found at Señor Uhl/Gallery.