The Once-ler/Relationships

This focuses on the relationships with the character Once-ler.

Hiccup Horrendous Haddock III
Both characters are shown to be creative and skilled inventors, so it is likely that they may share stories of that together. While Hiccup is more perceptive and accepting, the Once-ler tends to be short-sighted and stubborn, and this could cause disagreements among the two. However, both characters have a strong sense of optimism and determination, so it is likely that they would get along fairly well.

Jack Frost
Jack and the Once-ler have much in common, both of them being optimistic, free-spirited boys. Though fans may disagree on whether or not the Once-ler would be able to see Jack, most of them agree that they would be good friends if they did meet. (Since the Once-ler has had experience with the Lorax, some fans assume that he would be childlike enough to see other guardians such as Jack.) "Frostler" is a pairing that the two characters share, many of its fans believing that Jack would be the one to stop (or attempt to stop) Once-ler from making his bad decision of chopping down the Truffula Trees. It is possible that the two might get slightly annoyed with each other at times, but in general they are often portrayed to have lots of fun together, singing, joking, and playing with the forest animals. It is also possible that Jack might be associated with the Lorax, since both of them are labled as "guardians."

Merida DunBroch
Since both characters tend to be rather stubborn and outspoken, they would probably butt heads at first, probably disagreeing over little things. Merida, being more hot-tempered and forward, would probably lose her temper at him several times and may even call her names. Once-ler, being the more sassy and passive-aggressive of the two, would stay calmer and come up with more clever insults, but in the end, he too would probably get annoyed with her. However, after the initial annoyance toward one another, Once-ler and Merida would eventually realize that they have more in common and would start to warm up toward one another. Both of them have trouble relating to their families, specifically their mothers, and both of them have hobbies that don't necessarily agree with their respective societies' gender norms--Once-ler has stereotypical "girly" hobbies such as knitting and cooking, and Merida's archery and horseback riding are often deemed "unladylike." While most fans do not portray them as close friends, they would get along fairly well. Beyond friendship, the to characters also have a pairing called Oncida, which has gained several followers in the fandom.

Rapunzel Corona
Rapunzel and the Once-ler have much in common, most notably their optimistic and artistic personalities, and their various talents. Both of them can sing and play the guitar, and they both appear to be good at knitting and cooking. In addition, both of them grew up with mother figures who appeared to be manipulative or otherwise mean, and both of them wanted to prove themselves. Because of all these similarities, they two are often portrayed to be close friends, and sometimes they are even paired up romantically in a ship called Rapunzler. It is widely believed that after the Once-ler turns bad, Rapunzel would be heartbroken and try to stop him, though whether or not she succeeds varies from story to story. Since their movies apparently take place in different time periods, they often meet in alternate universes, the most common being the Modern AU and Seasons Guardians.

Princess Anna of Arendelle
Anna and the Once-ler have similar personalities, despite the differences in their circumstances. Both of them are energetic, optimistic and rather awkward, and both have a love for music and for animals. They would most likely get along, but when the Once-ler turns to greed, Anna may be heartbroken and try to find a way to bring him out of it. Whether she succeeds or not differs from story to story.

Beyond friendship, the two also share a romantic pairing called Annaler, though it is not very common.

Mavis Dracula
Once-ler and Mavis would most likely get along. While he may be freaked out by Mavis being a vampire, the Once-ler has met other supernatural beings before (like the Lorax), so he might not be very affected by it. Mavis and Once-ler have similar energetic and optimistic personalities, as well as a love for music and art, so it is likely that the two would become friends, though Mavis may feel betrayed when the Once-ler turns to greed. Beyond friendship, the two have a pairing together called Mavler, which is fairly popular.