Chuckles the Clown from Toy Story 3, a perpetually frowning clown doll who used to be friends with Lotso the bear and Big Baby, before they were accidentally abandoned by their owner. Chuckles was fortunate enough to be taken in by a new kid, but feels sorry for the embittered shell his former friend Lotso has become. In the end, when he sees a picture Bonnie (the girl he belongs to) drew of him, he smiles for the first time, realizing that he is indeed loved.
Elsa from Frozen tried to live up to the "stoic" part, mistakenly believing repressing her emotions was the only way to control her ice powers. She became this way after almost killing her little sister Anna with her powers by accident as children, and Elsa felt that severing her relationship with Anna was the only way to protect her. With years of repressed anger, guilt, fear and misery starting to boil over with the added stress of her parent's death and her own coronation, one argument with her sister is all it takes for her to red-shift to Woobie, Destroyer of Worlds territory.
True to his name, Stoick from How to Train Your Dragon. Throughout the first film, he keeps up appearances as the gruff, no-nonsense Chief of Berk, who is constantly frustrated by his son's actions and single-mindedly bent on destroying the dragons' nest. But as Hiccup's reputation starts to improve, we start to see the cracks in Stoick's facade, when he tries to start a real conversation with Hiccup and is beaming with excitement at the opportunity to connect with his son. He spends so much of his time being Chief that his only father-son time with Hiccup is berating him when he causes disruptions to his job, and it clearly hurts him that this is the case. After Hiccup's perceived betrayal, he curtly declares "You're not my son", but when he steps outside, one brief look of horror shows just how painful saying that was for him.How to Train Your Dragon 2 expands on this; when Hiccup was an infant, his wife, Valka, was abducted by a dragon that had invaded their home. Most likely, this explains much of Stoick's determination to destroy the dragons in the first film. You can see a profound and immediate change in Stoick's character when he sees Valka alive for the first time in 20 years. Additionally, he also reveals that he was the only survivor of a gathering of chiefs that were attacked by Drago Bludvist, the horror of his memories convincing him that there is no way to deal with Drago and that Berk must be kept under lockdown when Drago returns.
Inside Out: Joy's attempts to keep Riley happy in the face of all of the distress caused by the move ends up causing more damage to Riley in the long run than if Joy had just let her be honest about how she felt up front. Riley is only able to truly make peace with moving to San Fransisco (and becomes more emotionally healthy as a result) when Joy allows Sadness to have Riley finally break down crying and admit her homesickness to her parents.
Kung Fu Panda has Tigress in the first movie who tries to be this. She isn't completely stoic when provoked, but she definitely needs a hug and yet pushes it away harshly as she strongly believes to not show any weakness for it. She becomes more gentle and less stoic in the second movie, but it takes her until the middle of it before she even accepts showing any weakness. And she doesn't accept any gentleness towards her until movie three.
After Wash's death in Serenity, Zoe becomes this (even in-universe, look at Kaylee's face when Zoe says Wash isn't coming). Until the Reavers arrive, and then she goes into creepy Tranquil Fury mode and engages them in hand-to-hand combat, almost getting herself killed in the process, which horrifies even Jayne with the sheer death wish of the move.
The burglar Marv in the Home Alone films suffers horrendous abuse at the hands of Kevin, but unlike his partner Harry, who often groans and mumbles after falling into Kevin's traps, Marv never complains and at one point in the sequel even adopts a Superman pose and bellows "NEVER!" when Kevin tauntingly asks him and Harry if they've had enough pain.
Sergeant Todd in Soldier was forced to spend his childhood undergoing brutal training as part of a project to become the perfect soldier. When he becomes outdated he is thrown off on a wasteland planet. He spends the movie trying to cope with his purpose in life being taken from him and has no place among normal people due to his killer instinct and total lack of social skills. When Sandra asks him what he thinks about, he reveals that it's fear and discipline, every single moment.
Harry. He may be a very well-to-do, smooth badass who gets to wear cool suits, but lets take a good look at what happens to him throughout the course of the movie. At the very start of the film, he loses his protégé, and instead of getting any particular sympathy from his colleagues, hes mostly shown getting flack for making a poor choice. Then he tries to comfort the dead mans family with little success and has to deal with the widow sobbing and yelling at him. All of this is, of course, made worse by his guilt for having missed the grenade that killed Lancelot. Seventeen years later, the new Lancelot dies, so he loses another colleague, is reminded of his grief and failure, and if that werent enough, his boss is still giving him crap over picking the wrong sort of guy for the previous Lancelot seventeen years ago. As he puts it in the bar, hed had a rather emotional day. He then is able to take Eggsy under his wing, which must give him some happiness, but shortly afterwards he goes to investigate Professor Arnold and is drugged with an unknown substance and nearly blown up for his trouble. He spends weeks in a coma, and when he finally wakes up he then almost immediately goes back to work, which is apparently his entire life, as he is never shown to have any sort of relationship outside of the Kingsmen no friends, no family members, no significant other, nothing. Granted, none of the other Kingsmen are shown in relationships either, but Harry seems to be a bit of a misfit among them, given his progressive attitude and lack of snobbery, so hes isolated even at work. Indeed, his best friend appears to be his deceased and stuffed pet.Then he has to deal with Eggsy failing his final test, just when hed been so close, and his very next act is to visit the church, where Valentines device drives him into a killing frenzy along with everyone else, and when he comes out of it he reacts with horror to what he just did right before he dies. To top it all off, even if he didnt know it, his boss was one of the people behind his death! Does this guy need a hug, or what?
His protégé Eggsy didn't fare any better, either. He lost his dad while he was still a kindergartner, and it messed up his and his mother's lives so bad that his mother had no choice but to marry a bastard like Dean who's constantly making their everyday life a living hell. He has skills and talents that could allow him to become a world-class gymnastic champion or a member of the Royal Marines but had to let them all go because he didn't want to make his mother worry. Sure, he has a few friends, but his loyalty to them got him into trouble with police several times, and the last time he did that, he almost get jail-time that could last years. If Harry didn't show up in his life when he did, his future would be looking very grim. Even when he was offered the chance to become a Kingsman, he had to compete with most candidates who are high-class bigots who like to pick on him because of his social status. Against all odds, he still failed in the end, disappointing Harry who he came to look up to as his father-figure, just before Harry went on the mission that killed him! Even if Eggsy managed to save the day and finally become a Kingsman and give his mother a new life in the end, he would have to live with the fact that Harry would never get to see the Kingsman he becomes.
Will Kane from High Noon. He's a retired marshal who doesn't show his feelings very much. But boy, does he have it rough throughout High Noon. All he wants to do is live in peace with his wife, but the Miller gang is coming to kill him, his wife and remaining deputies desert him, his predecessor doesn't believe in him and nobody is willing to help him (and those that want to can't because they're too young or physically unfit).