Suggestions by @goatheart

Diane Guerrero

as Damara Megido in Homestuck

Jake Gyllenhaal

as The Signless in Homestuck

Park Bo-gum

as Mituna Captor in Homestuck

Derek Luke

as BRO Dave in Homestuck

Kathy Bates

as NANNA Jane in Homestuck

Tatanka Means

as Horuss Zahhak in Homestuck

Rodney Eastman

as Horuss Zahhak in Homestuck

Martin Sensmeier

as Equius Zahhak in Homestuck

Gong Yoo

as Sollux Captor in Homestuck

Donald Glover

as BRO Dirk in Homestuck

Allegra Acosta

as Aradia Megido in Homestuck

Samira Wiley

as Meenah Peixes in Homestuck

Lupita Nyong'o

as MOM Roxy in Homestuck

Arisce Wanzer

as Vriska Serket in Homestuck

Angel Qinan

as Vriska Serket in Homestuck

Kalia Yu

as Terezi Pyrope in Homestuck

Elliot Fletcher

as Karkat Vantas in Homestuck

Lo Mutuc

as Nepeta Leijon in Homestuck

Willow Smith

as Jade Harley in Homestuck

Jason Genao

as Tavros Nitram in Homestuck