Narrator:He is so smart, he can recite the alphabet backwards and upside-down. Currently, he is writing a book, called "The History of the Future". He is that smart. He daydreams in Latin. He once divided the circumference of a jack-o-lantern by its diameter. And made pumpkin pie. It was delicious. Meet...Doc! Doc: Whoopdy-doopdy howdy-do 'ya do!
Doc wears a tall green and turquoise hat, which is striped and houses many gadgets inside. He also has a big bushy eyebrows and a beard, which are both colored platinum blonde. He wears a small red bow tie, a bright blue shirt with turquoise suspenders, short, green pants and red circular glasses.
In The 7D, Doc is portrayed as the brains of the group. His machines and other gadgets are pretty advanced in the series' timeline and setting, and it even helped the residents of Jollywood (Sky Buckets are one example) and the dwarfs themselves. However, he can make mistakes and is pretty quick to admit so. In "The Very Important Thingy", he can't work on a creation Queen Delightful had commissioned him for with so many distractions. He eventually overcomes this obstacle by building it with a considerable amount of noise without even knowing beforehand, though he realizes that he was more worried that he would fail the Queen.
Despite his smarts, he can be as goofy as the other dwarfs, such as the time he failed to see Grim Gloom through his disguise as Toasty in "Grim the Genius", saying that he was "blinded by its deliciousness" when he was offered toast, his favorite food. He can react wildly during his observations; in "Take Me To Your Grumpy" he became fascinated with rainbows so much that he went to drastic measures to study them while reacting wildly to them, and in "Take Care of Your Elf!" he is very eager to learn about elves and their culture.
"Expect the unexpected!" (commonly known as his motto, but it was also said by Happy in "The Jollywood Jam" right before the performance)
"Whoopty-Doopty-Schmoodily-Doo!" (whenever he intends to conclude something or the result)
"My hat comes with extra trunk space." ("Buckets")
Doc is the fifth of the 7D to have his childhood memories shown in "Smarty Tooth". Unlike the previous dwarfs (Sneezy, Grumpy, Dopey and Happy) whose childhood memories are told through flashbacks, Doc's memories were displayed through a projector by the other dwarfs in the episode.
In "Dr. Jingleheimer", he got kidnapped by the episode's antagonist to use his hat to shrink Jollywood. Also in that same episode, Doc tells the audience that when he invented his hat, he had it obey whoever was wearing it, Doc even followed up saying that it was a big mistake.
Out of all the 7D, he might be closest to Happy and Bashful.
"The 8th D" is the first episode to show Doc without his glasses for a brief time.