Suggestions by @user_79680

Owen Wilson

as Horbert in The Legend of James

Score: +2

Kristen Wiig

as Patty in The Legend of James

Score: +2

Tim Allen

as Ben in The Legend of James

Score: +2

Dustin Hoffman

as Larry in The Legend of James

Score: +2

Drake Bell

as James in The Legend of James

Score: +2

Casey Deidrick

as Le Nutty in The Sky-High City of Steampuff

Score: +2

Paul Rudd

as Sid in The Sky-High City of Steampuff

Score: +2

Maddie Phillips

as Minka Mark in Pettopia

Score: +3

Mindy Kaling

as Penny Ling in Pettopia

Score: +2

Seth Rogen

as Vinnie Terrio in Pettopia

Score: +2

Natalie Portman

as Erica Clemmington in Pettopia

Score: +2

Amy Sedaris

as Pepper Clark in Pettopia

Score: +2

John Cusack

as Russell Ferguson in Pettopia

Score: +2

Jenny Slate

as Cattella/Ellen in Finding Cattella

Score: +2

Rachel McAdams

as Zoe Trent in Finding Cattella

Score: +2

Emma Stone

as Tillie in Thomas and Tillie

Score: +2

Julia Roberts

as Audrey Hatt in Thomas and Tillie

Score: +2

Eddie Izzard

as Gordon in Thomas and Tillie

Score: -1

Tom Kenny

as Sir Topham Hatt in Thomas and Tillie

Score: +2

John Krasinski

as Henry in Thomas and Tillie

Score: +3