Perfect casting! "Buffy" and "How I Met Your Mother" alum Alyson Hannigan is joining the live-action "Kim Possible" movie: She'll play Dr. Ann Possible, Kim's brilliant brain-surgeon mom.

Sadie Stanley and Sean Giambrone ("The Goldbergs") were previously announced as the new Kim Possible and her BFF, Ron Stoppable, teens who thwart mega-villains in between homework.

Also new to the cast: Connie Ray ("The Big C") as Nana Possible, Todd Stashwick ("12 Monkeys") as villain Drakko and Taylor Ortega as his partner-in-crime, Shego.

Ciara Wilson ("OMG!") will play new student Athena and Erika Tham ("Make It Pop") will play Kim's frenemy, Bonnie.

The "Kim Possible" movie will be out in 2019.

[Via Deadline]