Suggestions by @xoemme

An Unknown Child Actress

as Carmelita spats in A Series Of Unfortunate Events

Aubrey Anderson-Emmons

as Isadora Quagmire in A Series Of Unfortunate Events

Jackson Robert Scott

as Klaus Baudelaire in A Series Of Unfortunate Events

Miyako

as Isadora Quagmire in A Series Of Unfortunate Events

An Unknown Actor

as Duncan and Quigley Quagmire in A Series Of Unfortunate Events

Sofia Roser

as Isadora Quagmire in A Series Of Unfortunate Events

Walker Scobell

as Klaus Baudelaire in A Series Of Unfortunate Events

Jason David

as Klaus Baudelaire in A Series Of Unfortunate Events

Matty Cardarople

as Person of Indeterminable Gender in A Series Of Unfortunate Events

An Unknown Jewish Child Actor

as Klaus Baudelaire in A Series Of Unfortunate Events

An Unknown Child Actress

as Sunny Baudelaire in A Series Of Unfortunate Events

Emily Browning

as beatrice Baudelaire 1st in A Series Of Unfortunate Events

Peter MacNicol

as Ishmael in A Series Of Unfortunate Events

Max Greenfield

as The Denouement Brothers in A Series Of Unfortunate Events

Tony Hale

as Jerome qualor in A Series Of Unfortunate Events

Sara Rue

as Olivia Caliban in A Series Of Unfortunate Events

Roger Bart

as Principal Nero in A Series Of Unfortunate Events

Cobie Smulders

as Mrs. quagmire in A Series Of Unfortunate Events

Will Arnett

as Mr. quagmire in A Series Of Unfortunate Events

Catherine O'Hara

as Georgina Orwell in A Series Of Unfortunate Events