Doraemon: Nobita and the Steel Troops: Riruru

As one of the first scout units to take over Earth, Riruru comes from the faraway robotic planet called Mechatopia. Her main duty is to transport the war machine robot, Jill.

Doraemon: Princess Sophia

Sophia is a movie exclusive character featured in the movie, Nobita's Great Battle of the Mermaid King. Her grandmother, Queen Undine, is the queen of the mermaid tribe. She's also Nobita's temporary love interest and Shizuka's temporary best friend. She's the mermaid princess of an ancient underwater kingdom, called Planet Aqua and the Aquarians.

Littlest Pet Shop: Anna Twombly

Although now old, Mrs. Twombly is still an expert at Kung Fu Quilting.

Younger Mrs. Twombly: http://animefeet.blogspot.com/2015/04/littlest-pet-shop-anna-twombly.html