Sandro

Season 1

During season 1, Sandro is regularly left behind and given wild goose-chase tasks to keep him busy. He's not great at stealth missions and keeps being too polite and friendly with their enemies, so, he gets the boot more often than not. When not on missions, Sandro is excitedly following around Leo and they're bouncing off of each others energies. They're always at each others side, to the point where Sandro sleeps in Leo's room (which he had been doing since they were tots).

Sandro, like Raph, unlocked his ninpo early Season 1. At the time, he could only climb and stand/sit on walls. Like Spiderman!

During the fight against Draxum to try and stop him from awakening Shredder, Sandro felt helpless and afraid for the first time.

Season 2

In the beginning of Season 2, fighting Shredder made him realize that he was afraid that he didn't know anything about himself.

Because of this, Sandro made the decision to leave home and roam around to try and figure out who he is. His family supported him in this and after a teary goodbye, Sandro left home. He spent most of his time going through the Hidden City making new friends and learning how to master his ninpo; which he realized was much more powerful than simply walking on walls.

A call from April telling him that they were going to fight the Shredder and save his father solidified the fact Sandro was ready to go home. He appeared in the climax of the fight and helped his family defeat the Shredder. He happily stays at home, still sleeping in Leo's room, and enjoys trying to learn more about himself while supporting his little brother as the new leader of the team.

Movie

During the movie, Sandro desperately tried to keep motivating Leo to be the best leader he could be. Leo was uncharacteristically stressed and had a hair-trigger sensitivity to being questioned, but Sandro knew it was the weight of Raph being kidnapped keeping him from being the leader they needed. Despite this, he supported Leo up until they found Raph kraangified.

Sandro desperately tried to tell Leo that they needed to flee and eventually forced his family and Casey Jr. to flee. Leo was understandably upset about this and they got into their first ever argument ever. Sandro, feeling much like the unassured turtle he used to be before he left, relented and apologized for disobeying his brother, feeling responsible for the failed mission. Leo accepted his apology and they set forth a new plan to save Raph.

Sandro was the last brother to stay in the fight with Leo against the Kraang. Because he didn't use his escape pod in the first Kraang fight, he used it on Leo (parralleling Raph) to send him out of harms way and back to the family at the ground. Sandro told Casey Jr. to take the key at the count of ten, and turned off his coms to fight the Kraang because he knew his brothers would yell at him not to fight alone.

Because of Sandro's ninpo manifesting into a tornado and consequentially sucking the Kraang and himself into the prison dimension, he had no time to get out before Casey Jr. tore out the key and locked the prison dimension on him. It was scary at first, but Sandro quickly tried to reason with the Kraang that there wasn't any reason to fight anymore; they were both stuck in the prison dimension. Obviously, the Kraang didn't care.

They fought for a while with Sandro often hiding to rest and getting found easily. After a handful of days, Kraang's explosive rage lessened to a tired anger and Sandro finally got enough reprieve to shyly start mingling with the alien. It took quite a bit, but Sandro finally put himself into the Kraang's favour (even if the Kraang wouldn't admit it out loud) and could simply relax and wait for Leo to save him.

Sandro never once doubted that his brothers would try to get him out of the prison dimension. Because of undisclosed circumstances, Sandro knew that Mikey originally was going to be the one to save him. However, because of his meddling during the Raph kraang fight, Mikey's arms and hands got injured. So, he relied heavily on Leo being able to hopefully make a portal into the dimension.

It took a month before his brothers could get him, and only him, out of the prison dimension.

GOODNESS GRACIOUS MAMA MIA

First and foremost, a person needs to know that Sandro was a joke OC based off of a recolour over Leonardo from ROTTMNT. Thing's snowballed and now he is his own Fan OC. Yes I said Fan OC. People like the green guy what do you want from me. I literally did this as a joke and now he has lore. what am I supposed to do.

The lore of his character is DEEP and forever adding. I'm going to do my best to be concise.

Sandro as a tot began to idolize his younger brother Leo. He did this because Leo seemed extremely well liked, and he wanted to be liked too. This inevitably turned to Sandro completely copying Leo in whatever activity he did and even going as far as to draw on red stripes on his face. His sense of self and identity eroded away through years of growing up and pretending to be like Leo. It has gotten to the point that all of his self worth is solely on how good he can mimick Leo.

From early on in their childhood, Sandro decided to room in Leo's bedroom and sleep in the same bed as him. They shared a bedroom through all of their life and once they got too big to share a bed, Sandro moved to sleep on the floor instead. They're so comfortable with eachother that Leo doesn't even mind the lack of privacy. They spend a lot of nights staying up together.

However, through his life Sandro had made many mistakes that distanced him from his other brothers. He broke Mikey's skateboard, ignored Raph constantly, and eats through all of Donnie's tech without even thinking about it. His relationship with them are strained because of his many, many actions. This stays strained up until post-Movie plotline.

There's a lot of things to know before thinking about Season 1 Sandro. First, Sandro is never allowed on missions. He's too gullible, too kind, and much too pacifistic. Alongside that, he makes too many noises to keep their missions stealthy. He churrs, whines, whistles, literally any noise you can think of that will disrupt anything stealth-like.

Another thing to know is that Sandro is constantly stealing Leo's clothes. Hoodies? His now. Gloves and socks that aren't being used? His now. Sorry, that's what happens. Leo's pretty alright with it, especially since it feels like he has a fan wearing his merch (his words, not mine).

Through out the seasons and in the movie, Sandro is voiced by different voice actors. Season one, he is voiced by UK comedian James Acaster. In season two, he's voiced by Danny Gonzalez, a commentary youtuber. And for the movie, he is voiced by Jarvis Johnson, also a commentary youtuber.

For legal reasons all of those are fancasted voice actors. Danny Gonzalez dont come for me. Big fan. You're the most liked Sandro voice actor according to a twitter poll I did. Congrats.

Through out the seasons, it is explicitly shown that Sandro has an innate ability to emotionally disarm his enemies through pure likability; it’s his “built-in defense mechanism.” This defense saved him from the Kraang’s wrath when trapped in the Prison Dimension. It also earned him the favour of Hypno-Potamus and a number of other villains.

I'm quite literally about to just straight up list facts about Sandro because I dont know how else to put this down. No use writing it in a paragraph, man. We all have ADHD anyway.

- His weapon of choice for both seasons was two salami sticks. You heard me.
- He is constantly chewing on things he shouldn’t be; he’s like a teething puppy.
- He cannot spell his own name (He spells it Sadnro)
- Worst fighter out of his brothers (pre-movie)
- Had a “diet pizza” arc to stand out. It failed
- Likes Lou Jitsu movies and the Great British Bake Off
- Discussed systemic oppression with Todd
- Destroyed Statue of Liberty... twice.
- He is so fucking stupid
- Remembers Warren Stone but Warren doesn’t remember him.
- He married a slice of cheese. Raph Ate his wife. He is now a widow.
- In the bad future timeline, He dies at 24 because he ate an expired twinkie.
- He has great coping mechanisms, but his bad ones are self isolating and chewing his knuckles.
- He is VERY open about his emotions and communicates well.