Suggestions by @el_lame

Jack Black

as Marvey in The Adventure Zone: Balance

Score: +2

Betty White

as Istus in The Adventure Zone: Balance

Score: +2

Danny DeVito

as Pan in The Adventure Zone: Balance

Score: +3

Aubrey Plaza

as Lydia in The Adventure Zone: Balance

Score: -1

Patton Oswalt

as Leon in The Adventure Zone: Balance

Score: +2

Taika Waititi

as Edward in The Adventure Zone: Balance

Score: +2

Idris Elba

as Kravitz in The Adventure Zone: Balance

Score: +2

Damson Idris

as Kravitz in The Adventure Zone: Balance

Score: +1

Ben Schwartz

as Graham in The Adventure Zone: Balance

Score: +3

David Harbour

as Captain Bane in The Adventure Zone: Balance

Score: +2

Tessa Thompson

as Carrie Fangbattle in The Adventure Zone: Balance

Score: +2

Tessa Hoder

as Carrie Fangbattle in The Adventure Zone: Balance

Score: +1

Cate Blanchett

as Sloane in The Adventure Zone: Balance

Score: 0

Tom Holland

as Little Jerry in The Adventure Zone: Balance

Score: +2

Björk

as Paloma in The Adventure Zone: Balance

Score: +3

Ronda Rousey

as Jess the Beheader in The Adventure Zone: Balance

Score: +2

Keith L. Williams

as Angus McDonald in The Adventure Zone: Balance

Score: +3

Griffin McElroy

as Jeffandrew in The Adventure Zone: Balance

Score: +2

John Mulaney

as Garfield the Deals Warlock in The Adventure Zone: Balance

Score: +3

Elliot Page

as Roswell in The Adventure Zone: Balance

Score: +2