Dr. Horse

Doc Top is a male Earth pony pediatrician who appears in the episodes Secret of My Excess and The Cutie Re-Mark - Part 2. He has a light brown coat, orange mane and tail, gold eyes, and a cutie mark of a stethoscope and first aid kit. He is unnamed in the show, addressed only as "Doctor" by Twilight Sparkle, but he is named in merchandise.

Depiction in the series
Doc Top first appears in the season two episode Secret of My Excess; Twilight Sparkle brings Spike to his office when he starts exhibiting uncontrollable growth spurts. Doc Top fails to diagnose Spike because he treats baby ponies, not baby dragons, and he suggests that Twilight take Spike to a veterinarian.

In the season five episode The Cutie Re-Mark - Part 2, Doc Top appears as a resident of Zecora's secret camp in the Everfree Forest, hiding from the changelings. When Queen Chrysalis appears to attack the camp, Doc Top flees in terror when a filly he has been living with is revealed to be a changeling.

Merchandise
In the Canterlot Nights expansion set of Enterplay's collectible card game, Doc Top is named on his card, #32 C, which attributes to him and Octavia the respective quotes "Aww, do you have a boo-boo? Who's the bwave wittle filly? Is it you?" and "... Perhaps it is time I finally found a new primary care physician."

Quotes
"Well now, what seems to be the problem?"

- Secret of My Excess

"All right then, let's just have a look see, shall we? Widdle guy not feewing too good? Who's a brave widdle boy, huh? Who's a brave one?"

- Secret of My Excess

"Well, I think I know what the problem is. He's a dragon!"

- Secret of My Excess

"Oh. Well, that would explain it. Listen, I don't know anything about dragons, I know about baby ponies. Maybe you should try a vet."

- Secret of My Excess

"Aww, do you have a boo-boo? Who's the bwave wittle filly? Is it you?"

- Enterplay collectible card game Canterlot Nights #32 C card of Doc Top