Suggestions by @stargirl0624

Josh Radnor

as Ash in Midnight Library

Score: -1

Emma Watson

as Nora Seed in Midnight Library

Score: +6

Olivia Coleman

as Mrs Elm in Midnight Library

Score: +1

Emma Thompson

as Mum in Midnight Library

Score: +1

Dennis Quaid

as Dad in Midnight Library

Score: +1

Dove Cameron

as Izzy in Midnight Library

Score: +1

Kunal Nayyar

as Ravi in Midnight Library

Score: -2

Oscar Isaac

as Hugo in Midnight Library

Score: +2

Wentworth Miller

as Joe in Midnight Library

Score: +1

Emilia Clarke

as Nora Seed in Midnight Library

Score: +2

Jessica Lange

as Mum in Midnight Library

Score: -1

Jeff Bridges

as Dad in Midnight Library

Score: 0

Matt Smith

as Dan in Midnight Library

Score: +1

Freddie Highmore

as Ash in Midnight Library

Score: +1

Matt Lucas

as Neil in Midnight Library

Score: +1

John Boyega

as Dylan in Midnight Library

Score: +1

Emily Blunt

as Nora Seed in Midnight Library

Score: -2

Kathy Bates

as Mrs Elm in Midnight Library

Score: +1

Phoebe Waller-Bridge

as Nora Seed in Midnight Library

Score: +2

Marc Maron

as Neil in Midnight Library

Score: 0