Suggestions by @yetsimiller

Daeg Faerch

as Younger Thomas Plateau in Human Crazy University

Ed Harris

as Thomas Plateau in Human Crazy University

Ryan Potter

as Kouta in Elfen Lied-Live Action

Hoyeon

as Kaede in Elfen Lied-Live Action

Lee Jung-jae

as Kenji Kadota in Human Crazy University

Evan Peters

as Mahl in Mashle

Tom Holland

as Finn in Mashle

Jacob Elordi

as Lance in Mashle

Tom Felton

as Brad Coleman in Mashle

Millie Bobby Brown

as Lemon in Mashle

Daniel Radcliffe

as Wahlberg in Mashle

Alex Lawther

as Dot in Mashle

Asa Butterfield

as Mash in Mashle

Ashley Ganger

as D5 in Valkryie Drive Mermaids

Margot Robbie

as E9 in Valkryie Drive Mermaids

Daisy Ridley

as Marianne in Valkryie Drive Mermaids

Lily Collins

as Monroe in Valkryie Drive Mermaids

Jenna Ortega

as Aoi in Valkryie Drive Mermaids

Keke Palmer

as Momoko in Valkryie Drive Mermaids

Jennifer Lawrence

as Torino in Valkryie Drive Mermaids