Suggestions by @roberttorres

Jeremy Ray Taylor

as Ben in Geronimo!

Score: +1

Peter Dinklage

as Geronimo Stilton in Geronimo!

Score: +1

Tom Kenny

as Simon Bar-Sinister in Underdog (reboot)

Score: +7

Mark Hamill

as Simon Bar-Sinister in Underdog (reboot)

Score: +2

Nika Futterman

as Sandi in Underdog (reboot)

Score: 0

Ashleigh Ball

as Sandi in Underdog (reboot)

Score: 0

Tara Strong

as Polly Purebred in Underdog (reboot)

Score: 0

Grey DeLisle

as Polly Purebred in Underdog (reboot)

Score: 0

Marc Thompson

as Underdog in Underdog (reboot)

Score: -1

'Weird Al' Yankovic

as Secret Squirrel in Hanna-Barbera Cinematic Universe

Score: 0

Josh Gad

as Underdog in The Jay Ward/total television cinematic universe franchise

Score: +7