Hamada Sensei:
Hamada-sensei makes some appereances in Paradise Kiss. She is still working as teacher at the Yazagaku, just like in Gokinjo Monogatari. She leads the class attended by the ParaKiss members.

Seiiji Kisaragi:
Another character from Gokinjo Monogatari, this time he's a teacher at the Yazagaku.

Shimamoto Kozue:
Another characters that appears later on 3rd volume and directly comes from Gokinjo Monogatari. She is Mikako's old friend from High Schools, who now is the head of the model agency Three Top, where Yukari works.

Aso Kaori:
Another student of the Yazagaku, who won the Fashion Show Prize last year. She was studying in England (just as Mikako did) but it's now back to see Fashion Show. She also seem to be really friendly with George...

Yukino Koisumi:
She is George's mother; she has the bad habit to drink all the time, regretting George's father for he leaved her years ago. She was a model with Shimamoto, before she got pregnant of George and forced to leave the work. She lives near George, in an apartment paid by George's father.

Sunami Noriji:
He appears only in the Fashion Show stage, but it deserves a note, since he is a well-known character from Gokinjo Monogatari.
As Yazawa-sensei writes in the manga: "Noriji is the caretaker of the building where Mikako and Tsutomu grown. He is a character yet known for the people who follow me since <<Gokinjo Monogatari>>; to the new readers: I suggest you to consider him like a distinct ma -- like an old slavering man."

Yamaguchi Alice:
The little daughter of Mikako and Tsutomo. At the beginning of the manga, Yukari mistakes her for the daughter of Miwako and Arashi. ^^;