Suggestions by @186fleetstreet

Florence Hoath

as Queen Ozma in Emerald City Confidential

Score: +2

Tina Fey

as Ruggedo's Mirror in Emerald City Confidential

Score: +3

Kevin McHale

as Anzel in Emerald City Confidential

Score: +3

Tom Kenny

as Toto in Emerald City Confidential

Score: +3

Christopher Walken

as Ruggedo the Nome in Emerald City Confidential

Score: -1

James Nesbitt

as Ruggedo the Nome in Emerald City Confidential

Score: +4

Will Friedle

as Jack Pumpkinhead in Emerald City Confidential

Score: +3

Dianna Agron

as Trot in Emerald City Confidential

Score: +3

Jeff Fahey

as Captain Bill in Emerald City Confidential

Score: +3

Lea Michele

as General Jinjur in Emerald City Confidential

Score: -1

Rollo Weeks

as Cutter in Emerald City Confidential

Score: +3

Timothy Spall

as Professor Wogglebug in Emerald City Confidential

Score: +3

Abigail Breslin

as Betsy Bobbins in Emerald City Confidential

Score: +3

Anneliese Van Der Pol

as Scraps the Patchwork Girl in Emerald City Confidential

Score: +5

Daran Norris

as The Scarecrow in Emerald City Confidential

Score: +3

Hugh Laurie

as Hank the Mule in Emerald City Confidential

Score: +4

Robbie Coltrane

as Tik Tok in Emerald City Confidential

Score: +1

Michael Clarke Duncan

as Tik Tok in Emerald City Confidential

Score: +3

Hilary Duff

as Dorothy Gale in Emerald City Confidential

Score: +6

Robin Williams

as Gumps in Emerald City Confidential

Score: +3