Charlotte also qualifies with her big, soft eyes and flicking ears. Her daughter Penny has these features too.
Hollyhock is one of the cutest characters in the show. Her face, voice, even her chubbiness just screams of Adorkable.
Season 4 shows that BoJack's mother Beatrice was very sweet and adorable as a child, until she too was corrupted by her own broken family.
In a massive amount, Wanda. She's a Cute Owl with big eyes, a heart-shaped face, a cheerful and naive demeanor, and the voice of Lisa Kudrow.
Pickles! From her cute name, to her soft and airy voice, her ditzy but kind personality, and her adorable mannerisms, she's definitely Moe.
Ruthie definitely counts. She's basically a younger, cuter version of Princess Carolyn but more cheerful and also very bright. Her appearance and likeable personality only makes the fact that she's just a figment of Princess Carolyn's imagination that much more tragic.
The real Ruthie (the baby porcupine PC adopts at the end of Season 5) is absolutely adorable. It's hard not to 'aww'' at every scene she's in.