Dr. Kindheart is a pink unicorn mare with a red mane and tail that she usually wears in a bun. Her cutie mark is the standard cross-and-heart mark that most medical ponies in FIM have, with a white cross and pink hearts slightly darker than her coat. Her eyes are blue.
Like most ponies, Kindheart is generally cheerful and upbeat; however, anyone questioning how a four-foot-tall unicorn can understand the biologies of the various species the PPC encounters will get a long, long lecture about how complex the bone structure of a limb that basically looks like a candy-colored tube can be, and the difficulties involved with having to study three different anatomies to get through medical school.
- "Stabs of Fear and Jealousy" (Magical Girl Lyrical Nanoha), Agents Ari and Tera (DF)
- Dr. Kindheart shows up at the end.
- "The Fine Art of Copypasting" (Puella Magi Madoka Magica), Agents Sergio Turbo, Nikki Cherryflower and Corolla (SOD)
- Dr. Kindheart shows up a the end again to solve the mystery of Nikki's wildly shifting magic.
- "Lasting Damage," Agents Sergio Turbo, Nikki Cherryflower and Corolla (SOD), Anebrin (DF), and Ari (DIC)
- Dr. Kindheart treats Ari's injuries.