this is Thomas (the one the adult pony is holding who is his father) he and his father are with gypsys who travel from place to place and told storys to the near by town ponies they talk about the wolf pony that some are cursed some chose by will some could even be born one and saying that there vicious and violent (when really it depends actually some still have there personality some transform at will well most but not all are nice though  
see this interesting videos)
 
youtu.be/jPQkwMpwY8g  
youtu.be/EOXrw3saFDo  
youtu.be/ZZXqb7eYoD8
 
and idk if you could see but in thomas’s eyes there is a refection of the woldpony from the fire showing that he becomes a wolfpony how he does ell just to put it simply not all wolfponys are nice and when he growns up and was just doing his job (staking boxes with supplys) he was attacked by a wolf pony who just went crazy or was a crazy pony before and i guess eather wants more wolf ponys or just to cause terror but Thomas manage to escape but after some difficulty he was banished from his village and was alone for a wile until he saw Erik (the phantom of the opera) and Dracula usually Thomas is vary nice and after getting to know each other Thomas joined them soon they met Jekyll, Hyde, griffin and Adam they also joined (as well as the assistant) (and later on after some time elizabeth) they all end up as room mates so ya that is priity much that i donr want to go in to a full blown story but oh well
 
darn for got cute marks but eh oh well