Suggestions by @kazpalys

Steve Carell

as Blue in IF 2

Catharine Daddario

as Bea's mother in IF 2

Bobby Moynihan

as Jeremy in IF 2

Liza Colón-Zayas

as Janet in IF 2

Alan Kim

as Benjamin in IF 2

Fiona Shaw

as Bea's grandmother in IF 2

John Krasinski

as Bea's unnamed father in IF 2

Ryan Reynolds

as Cal in IF 2

Cailey Fleming

as Bea in IF 2

Dillon Francis

as DJ Airy in IF 2

Alex Cazares

as Lili in IF 2

Carly Rae Jepsen

as Flora in IF 2

Travis Scott

as Bobby in IF 2

Liza Koshy

as Lulubelle in IF 2

Lana Condor

as Ketoru in IF 2

Dove Cameron

as Carmela Sweet in IF 2

Anthony Ramos

as Koe in IF 2

Ester Dean

as Flo Flamingo in IF 2

Lauren Mayhew

as Rainbow Kate in IF 2

Megan Hilty

as Bubbleisha in IF 2