PersonOlivia Olson5 credits in the catalogue: acting.On the wikisFandom · Phineas and Ferb WikiActingLove Actually2003Joanna AndersonPhineas and Ferb2007Vanessa DoofenshmirtzThe Glorias2020Susanne Steinem (uncredited)Adventure Time: Distant Lands2020Marceline the Vampire QueenAdventure Time: Fionna and Cake2023Marceline