Jack is a male German Shepherd born July 9, 2013
and last adopted November 25, 2013.
He is 6 years and 9 months old.
Jack is very much a gentleman; graceful and patient in equal measures. He is usually calm and can be counted upon to do what is in everyone’s best interest. Although Jack enjoys frightening others, he would never go as far as to harm humans nor monsters and is rather kindhearted.
Though his logic is sound, his reasoning can be questioned at times. He was quite thorough in his Christmas research, but opted to go with what he and his friends knew when he decided to give Sandy Claws the year off and take over for him. He was also oblivious to Sally’s feelings for him throughout most of the story. This is backed up by the fact that he barely even recognized Santa Claus’s distress when they first met. It seems that Jack can be naïve at times, as shown that he trusted Lock, Shock, and Barrel enough that he believed that they would simply get him Santa Claus without causing trouble, despite them being allied with Oogie Boogie and being heavily armed. In addition to this, Jack didn’t realize all the chaos he was causing on Christmas Eve until it was too late.
When Jack gets angry, he is unable to contain his frustration, as shown when Lock, Shock and Barrel bring him the Easter Bunny or, when dealing with Oogie Boogie. He did not hesitate to severely scare the trio or punish his old foe for endangering his friends with grim dedication.
It is also shown that Jack is incredibly curious, and loves to explore and discover. This is shown by his immediate fascination with Christmas and his excitement upon finding it. The musical number “What’s This?” demonstrates his excited, upbeat personality very well as we see him dashing from one thing to the next, like an excited child.