Suggestions by @tinariccio

Boop

as Gregg spiridellis in Boop the movie

Dr. Hirano

as Vanessa Kirby in Phineas and Ferb: party time in a moment

Vanessa Doofenshmirtz

as Olivia Olson in Phineas and Ferb: party time in a moment

Django Brown

as Django mash in Phineas and Ferb: party time in a moment

Jenny Brown

as Liliana mumy in Phineas and Ferb: party time in a moment

Holly (Phineas and Ferb)

as Jessica dicicco in Phineas and Ferb: party time in a moment

Gretchen

as Ariel Winter in Phineas and Ferb: party time in a moment

Ginger Hirano

as Michelle Zee in Phineas and Ferb: party time in a moment

Adyson Sweetwater

as Madison pettis in Phineas and Ferb: party time in a moment

Stacy Hirano

as Kelly hu in Phineas and Ferb: party time in a moment

Francis Monogram

as Jeff swampy mash in Phineas and Ferb: party time in a moment

Carl Karl

as Tyler Alexander Mann in Phineas and Ferb: party time in a moment

Katie (Phineas and Ferb)

as Dannah Feinglass in Phineas and Ferb: party time in a moment

Milly

as Isabella acres in Phineas and Ferb: party time in a moment

Candace Flynn

as Ashley Tisdale in Phineas and Ferb: party time in a moment

Ferb Fletcher

as David Errigo Jr in Phineas and Ferb: party time in a moment

Isabella Garcia-Shapiro

as Alyson stoner in Phineas and Ferb: party time in a moment

Phineas Flynn

as Vincent Martella in Phineas and Ferb: party time in a moment