Big things are happening on TV Tropes! New admins, new designs, fewer ads, mobile versions, beta testing opportunities, thematic discovery engine, fun trope tools and toys, and much more - Learn how to help here and discuss here.
Only Sane Man: In a way, since, he's the only one who actually saw what happened to Grandma and had still been looking for her for over a year, long after everyone, including his own family, had given up.
The Heart: Without her, the store was never the same.
Lethal Chef: Averted. Despite the song "Grandma's Killer Fruitcake" her baked goods and pastries are insanely popular and delicious, especially her fruitcake. The one batch that turned out bad was the one Cousin Mel intentionally poisoned to make people sick.
Made of Iron: Amnesia notwithstanding, the woman managed to survive being trampled by eight reindeer and a sleigh. Twice.
Plot Allergy: Her supposed allergy to eggs. One of the reasons she'd been heading out was because she left her medication at the store.
The Grinch: Pretty much stated during her confession she doesn't like the spirit of Christmas.
Hyper Awareness: Subverted. The fact that she noticed a few key things, such as the letter Santa left behind and Santa actually arriving with Jake and Grandma, are what allowed her to put her plans in motion.
Idiot Ball: Why she held onto that letter stating what really happened is anyone's guess, but the fact that she did was pretty much Mel shooting herself in the foot.
Likewise leaving the spice in her purse. Doofus manages to pick up it's scent and leads Jake to where she keeping Grandma hidden.
Happily Married: We see Mrs. Claus at points in the film who's naturally worried for him after he's convicted of hit and run and kidnapping. And he holds her warmingly as they're about to head back to the North Pole.
Reasonable Authority Figure: A main rule of thumb is that humans aren't allowed to the North Pole without permission. So he let's Quincy slide when he brings Jake there to find his grandmother.
The Nose Knows: Being a dog and all. Manages to help Jake track where Mel had hidden Grandma during Santa's trial.
A rich business man who owns every store in the city, save for Grandma's.
Corrupt Corporate Executive: Averted, despite initially being set up as such. He wants to buy Grandma's shop but he's not willing to go to any illegal lengths to acquire it, and gives Jake a fair chance to find Grandma before he signs the deal with Cousin Mel. Likewise after everything said and done, he offers to turn Grandma's shop into a franchise.
Hidden Depths: When he was six, he wanted a Lieutenant Neutron Action Figure.
Austin: Lutenant Neutron? He was the best!
He also had a chance to go somewhere romantic and consummate a deal with Cousin Mel, which pretty much any other guy would've taken, but he chose to give Jake a little extra time to find Grandma.
Hyper Competent Sidekick: Like Jake, he likewise was trying to find out who Grandma belonged to and eventually does when he gets Jake's letter to Santa to bring his Grandma home. He also helps out Jake recover Grandma from the cabin Mel was keeping her hidden away in.
Worth It: Give the guy credit, he knew there was a risk in bringing Jake to the North Pole without Santa's permission. But did it anyway which luckily for him allowed him to keep his job.
Jake's mother and father (the father of which is the son of Grandma and Grandpa) and his elder sister Daphne (not thatDaphne.) note Though ironically the special was made by the same people who did What's New, Scooby-Doo?.
Adults Are Useless: They don't really prove to be much help both before the incident (making excuses to get out of helping Grandma with charity work and decorations) and after (all but giving up the search for Grandma. Hell Daphne at one point tells Jake to give up). But hey it's a kids movie. Par for the course.
So Proud of You: Stated to Jake after he both finds their Grandma and saves Christmas.