Suggestions by @jl_new_generation

Zoe Saldaña

as Lumina "Elementaria" Skye in Green Lantern

Score: +1

LaKeith Stanfield

as Malik "Marte" Voss in Green Lantern

Score: +1

Kiersey Clemons

as Nadia "Costruttrice" Blackwell in Green Lantern

Score: +1

Alden Ehrenreich

as Riley "Raz" Morgan in Green Lantern

Score: +1

Idris Elba

as John Stewart in Green Lantern

Score: +2

Ross Butler

as Marcus Vaughn in Booster Gold

Score: +1

Amandla Stenberg

as Selena Kane in Booster Gold

Score: +1

Joey King

as Quinn Everhart in Booster Gold

Score: +1

Haley Lu Richardson

as Lila "ChronoStar" Montgomery in Booster Gold

Score: +1

Dane DeHaan

as Jasper "Flashback" Knight in Booster Gold

Score: +1

Katherine Langford

as Sylvia "Shift" Turner in Booster Gold

Score: +1

Tony Revolori

as Max "Ripple" Eastwood in Booster Gold

Score: +1

Ludi Lin

as Aria "Eon" Bishop in Booster Gold

Score: +1

Noah Centineo

as Oliver "Quill" Stone in Booster Gold

Score: +1

Kaitlyn Dever

as Roxie "Reverb" Rinaldi in Booster Gold

Score: +1

Lily Collins

as Selene "Chrona" Blackwood in Booster Gold

Score: +1

Tye Sheridan

as Nathan "Nate" Reynolds in Booster Gold

Score: +1

Jack Lowden

as Victor "Vortex" Tempus in Booster Gold

Score: +1

Saoirse Ronan

as Janet "Jett" Carter in Booster Gold

Score: +1

Garrett Hedlund

as Michael "Booster" Carter in Booster Gold

Score: +1