Suggestions by @gabbyhejman

Jim Cummings

as Darkwing Duck in The Cartoons Movie (The Lego Movie Style)

Score: +1

Elizabeth Banks

as Beep Boppalot in The Cartoons Movie (The Lego Movie Style)

Score: +2

Chris Pratt

as Rocko Rama in The Cartoons Movie (The Lego Movie Style)

Score: +3

Sia

as Jimmy Neutron in Jimmy Neutron

Score: 0

Anya Taylor-Joy

as Cindy Vortex in Jimmy Neutron

Score: +1

Lori Alan

as Judy Neutron in Jimmy Neutron

Score: +1

Lori Alan

as Judy Neutron in Jimmy Neutron: Boy Genius

Score: +1

Demi Lovato

as Beautiful Gorgeous in Jimmy Neutron: Boy Genius

Score: +1

Tara Strong

as Rocko in Patton Oswalt as Rocko

Score: +3

Tom Kenny

as Flecko in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Tom Kenny

as Mr. Smitty in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Charlie Adler

as Mr. Dupette in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Linda Wallem

as Paula Hutchinson in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Charlie Adler

as Bev Bighead in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Charlie Adler

as Ed Bighead in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Carlos Alazraqui

as Spunky in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Mr. Lawrence

as Filbert in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Tom Kenny

as Heffer in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Carlos Alazraqui

as Rocko in Ojamajo Rocko (Ojamajo Doremi Style)

Score: +1

Demi Lovato

as Ed Bighead in Rocko's Modern Life (Genderbend/Genderswap)

Score: +2