1 - 20 of 139 Works in Leonardo is Casey Jones's Parent (TMNT)
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Forest of memories by Yulivd10
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
31 Oct 2025
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Summary
Leo watched him awkward. Instinct told him to try to relax and make a joke, but something made him feel that this one would not be well received.
"Don't worry, big brother," said the one in red bandana.
(And something in that sentence was wrong).
"You'll get your memories back and then we'll all be training together again, you'll see" he told him with a confident smile, looking like he believed every word he said. But faltering at the end of the sentence, showing a bit of his doubt.
Leo tried to smile back, only ending with a strange grimace.
Everything was wrong, his body was wrong. And even though he didn't know what was going on, he was just sure that those people were not his brothers.
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Rise and 2012 Leo change dimension. The problem? They both have amnesia, they are in each other's body and they both just woke up from their respective coma.
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crescent moons by MoonlitNightin
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
28 Oct 2025
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Casey Jones thinks he's adjusting to life in the past pretty well until a heavily guarded secret slips out...
And it turns out, Master Leonardo being his parent might be a little more literal than everyone thought.
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I Won a Part of You by CursedCatChild
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
24 Oct 2025
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The Techno drone wasn’t meant to be ever separated from its pilot. Yet Donnie forcibly got ripped out of it. But that never meant that the Techno Drone also got ripped out of Donnie. Or that the softshell’s parts all come back with him. What will a turtle do if he finds out that he’s partially Krang and that part is actually the majority of him?
Or the Techno Drone didn’t just Krangified, but straight up made Donnie 70% Krang. Of course with a species change comes some freaky new instinct, issues and body horror worthy transformations. Drowning in intense self hatred and fear of losing his brothers ( especially his twin) of course he tries to face all these challenges all alone.
Basically another Krang-Donnie AU, but trust me this is going to be a rollercoaster of very gory, very sweet and have a lot of made up Krang lore you never knew you needed.
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Autumn in Blue by MoonlitNightin
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
24 Oct 2025
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“How old is he?”
Leonardo pauses his stirring. He half-expected a joke—an innocent little jab meant to lessen the tension thickly clouding the kitchen—yet Leo’s voice is quiet, serious.
So Leonardo turns around and offers the same air of calmness that the teen approached him with. Yet his chest constricts when he has to angle his head down low to meet Leo’s eyes, and an overwhelming sadness withers his heart as he takes in that young, bright-eyed face. Leo is a child, a baby.
And he’s going to cause the end of the world.
Or, Casey Jones goes through the time portal, but he’s a baby in Leonardo’s arms. And one traumatized turtle juggles being a new dad while trying to prevent a horrible future.
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It's beyond repair for Blue by RoseyGlassPoisoning
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
15 Oct 2025
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Something Good by FaeChaos
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
07 Oct 2025
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Michelangelo ended up doing a different time spell than just sending Casey back in time to stop the apocalypse. He brought his whole family back to live out their lives peacefully. Well as peacefully as they can. Who knows, maybe another turtle-rabbit will enter the picture.
Series
- Part 1 of Because Why Not
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2012 meets Rise and gets the wrong impression (Don't worry, they'll learn) by PinkAlicorn
Fandoms: Teenage Mutant Ninja Turtles (TV 2012), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
03 Oct 2025
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Summary
2012 turtles plus April and Casey end up in Rise universe. They can go back to their own but decide to give the Rise group 'tips'.
2012 dysfunction meets close knit Rise.Edit: Made with ai.
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Multiuniversal Chaos by JuniperNauta
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types, Teenage Mutant Ninja Turtles (TV 2012)
23 Sep 2025
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Summary
TMNT 2012 x ROTTMNT 2018
2017: The Foot Clan look for an unknow warrior, who can beat their asses, and the turtles are curious. Luckily, they meet him first, and he's a human from a different universe. He ruined the Foot Clan's Portalmachine, so he can't just go home. Meanwhile, a new guest arrives, also from that world. CJ and Leon are strange, but on a good way. However, Karai knows Leon from somewhere.
2021: CJ is missing and Leo was worrying until he found a way to him. Unfortunately for Don, his dumdum twin didn't explain anything, so now, he has two missing familymembers.
2012!Band doesn't know that CJ is Casey or Leon is Leos alternative version. Let's fun!
Series
- Part 1 of Multiuniversal Chaos AU
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Bloody Hands (And Where Are You?) DISCONTINUED by redvelvetcookie
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
25 Aug 2025
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Summary
This was it. He couldn't take any more damage, his body was too broken down. This would be his heroic finale that he deserved. A prideful and honorable death for his previous sufferings at the hand of the Krang.
Leo accepted this as a fact. This was the end, he was going to die here by the very thing he hates most. He shouldn't be as content as he is with this fate.
He shut his eyes, a blatant display of resignation. Leo didn't care how brutal or horrific his death will be because he did it for his brothers, for his friends, his home. Nothing else mattered to him.
A bright smile came to him, an image of his younger brother. Cruel of his mind, to conjure up displays of his loved ones at his very last moments.
"It took you long enough..." Leo gasped brokenly, a wet chuckle escaping him as he said his last words to the Krang.
Giving them the last bit of satisfaction in knowing that they successfully managed to break him and shatter his resolve. It was almost to mock them in a way.
"Leo!"
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ORMy take on the whole post-movie recovery thingy but I put some personal pazazz on the rescue scene.
[Indefinite hiatus!]
Series
- Part 2 of Rottmnt angst (Mainly Leo)
- Part 1 of BH(AWAY) Series
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Lion By Name, Fool At Heart by SunMoonDreamer
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
08 Aug 2025
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Summary
Leonardo is welcomed properly into the family.
With a few changes and some shenanigans, he is sure to fit right in.
Series
- Part 5 of A Dream Away AU
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Different Times, Familiar Faces by SunMoonDreamer
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
08 Aug 2025
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Summary
Four future turtles arrive in the past months after the invasion.
But here's the catch:
They're each the last turtle alive.
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Out Of The Ashes by SunMoonDreamer
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
08 Aug 2025
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Summary
It's been a few months since the Krang invasion and things were supposed to be peaceful from now on.
That is, until a mutant turtle out of time appears. And he's not the only one.
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Teardrops by DaydreamingInFebruary
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
05 Aug 2025
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Summary
During the movie, Donatello reflects on his brother’s ultimate sacrifice and presumed death.
[SET in a DIFFERENT REALITY!]
Series
- Part 1 of *TMNT* Stories (Subseries)
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Parent Teacher Conference by LilithBane05
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
04 Aug 2025
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Summary
A 30 year old Casey Jones Junior finally gets accepted to college through less than legal means, and Leonardo has to deal with the consequences.
Series
- Part 8 of A Teacher's Bale
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большее сердце выросло вместо | a bigger heart grew back by ETurn
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
03 Jul 2025
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Summary
— Давно уже маленькие черепашки не звали меня посреди ночи, — пробормотал Сплинтер, оглаживая его лоб пальцем там, где его не закрывали бинты. — Обычно вы готовы перегрызть друг другу глотки за безраздельное внимание Красного.
Это было шуткой лишь наполовину. Леонардо поднял на него остекленевший взгляд. Было сложно просчитать, какая часть разговора застревала в его голове и проходила обработку, а какая вылетала во второе ухо, солнышком прокатившись по заторможенному лекарствами разуму и не зацепившись.
И затем Леонардо произнес:
— Он меня ненавидит.
— Пардон? — недоуменно переспросил Сплинтер.
Его сын моргнул, и наконец слезы полились по его щекам, смачивая бинты.
— Он меня ненавидит, — настоял Синий. — И он прав. Это я во всем виноват. -
Leonardo Hamato: A Pizza Topped with Soulmarks by CraftyKat147
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
12 Jun 2025
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Summary
Leo was born with 8 Soulmarks. He grew up knowing four of them and wondering how he would find the rest of them when his entire family are mutants that live in the sewers. Luckily, his soulmates are looking for them and it doesn't take long before Leo starts to gather them home. Hopefully they don't mind the smell and like pizza as much as the rest of them do. I mean, their soulmark kinda looks like pizza, Leo thinks it might be a requirement to be part of this family.
In other words, how Leonardo Hamato-Splinterson-O'Neil-Jones, whatever we're calling ourselves, grows up, fights evil and his soulmates for the last slice, saves a fish and nearly dies again, and realizes that he's kind of but not really a dad. Oh! And stops the Apocalypse, that was important.
Series
- Part 2 of A Pizza Topped with Soulmarks
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TMNT RedVerse - Code Red. by TheBloodBringsColorAndFluoresce
Fandoms: Teenage Mutant Ninja Turtles - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
06 Jun 2025
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Summary
The black eye is a universally recognized sign of pain, or trauma, or abuse.
Under my face there's a rainbow; it starts with manic red, and ends with a violent blue.
I'm growing into something new.
Someone new.
I want to scream, wake up from this bad dream.
But what's the use? This was not a dream.
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The Five Lives of Casey Jones Junior by Knif_Knight
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
16 May 2025
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Summary
Or Junior has tried five different times to save his family. He failed four times and succeeded once.
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Aoi Tsuki by Azucena_Insanity_Daee
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Injustice: Gods Among Us, Samurai Rabbit: The Usagi Chronicles (Cartoon)
09 May 2025
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Summary
“Dad and Don failed.” Leonardo’s whisper made me freeze in place. I looked back at my family, both of them had a gaze filled with determination. I recorded it in my memory and smiled. We had a job to do.
Series
- Part 5 of Unjust
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Pride through time by Leona1810
Fandoms: Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018)
01 May 2025
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Summary
Casey realizes that even though the Leo he knew and loved has gone, he is not alone.