lineart Sterling K. Brown and/or Isaiah Mustafa as Martian Manhunter and for a specific mentor line, Dom Sherwood and Emeraude Toubia as anything because I love your beautiful faces and need them in my life, Bumblebee, Aqualad, Artemis, missing titans, people to exchange customs with, random run-in scenes, anything. All the voice actors ever, especially Ashley Johnson, Matt Mercer, and Sam Riegel. All the Lanterns ever, the missing Batfam/Bat rogues, more aliens. All of it.