Suggestions by @gabriellee1

Maleficent

as Boris Karloff in What Actor/Actress Would Play a Characters In A Golden Age (Genderswap)

Score: +1

Hiccup Horrendous Haddock III

as Green Lantern Corp in Fictional Characters by which Lantern Corps they would be in

Score: +3

Mirajane Strauss

as Love Interest from anime in Who should Be Ben 10's love Interest

Score: +1

Dove Cameron

as Jormungandr in Valkryie

Score: +1

Teagan Earley

as Nanna in Valkryie

Score: +1

Ayron Alexander

as Fenrir in Valkryie

Score: +1

Meg Donnelly

as Hel in Valkryie

Score: +1

Léa Seydoux

as Angboda in Valkryie

Score: +1

Christoph Waltz

as Ymir in Valkryie

Score: +1

Michael Giacchino

as Composer in Valkryie

Score: +1

Patrick McHale

as Writer in Valkryie

Score: +1

Glen Keane

as Producer in Valkryie

Score: +1

Tony Bancroft

as Director in Valkryie

Score: +1

Bentley Storteboom

as Modi in Valkryie

Score: +1

Christian Convery

as Magni in Valkryie

Score: +1

August Michael Peterson

as Thrud in Valkryie

Score: +1

Reneé Rapp

as Skadi in Valkryie

Score: +1

Ewan McGregor

as Heimdall in Valkryie

Score: +1

Jonathan Bailey

as Tyr in Valkryie

Score: +1

Darren Criss

as Baldur in Valkryie

Score: +1