Liam Aiken

as J.R.

as Hugo

as ChickenMan

as Andy Monrovia

as Francis

as Ronnie Ram Tech (voice)

as Sinclair

as Eddie

as Charlie Masters

as Hezekiah

as Reed

as Ned Rifle

as Son

as Bryan

as Josh Green

as Mr Will

as Tyler

as Milo

as Johnnie Pappas

as Rolo

as Himself

as Ned Grim

as Klaus Baudelaire

as Owen Baker

as Peter Sullivan

as Robbie Bishop

as Jason

as Abner

as Emmett Wilder

as 7-Year-Old Emanuele

as Joe (kid)

as Ben Harrison

as Ned

as Nathan

as Kid

as Tory Quinlann

as Jack Ericson

as Thomas Norton

as Ethan