Characters who have canonically killed children, yet are still sympathetic or even fan favorite characters

Sandor Clegane from Game of Thrones/ASOIAF. Killed Arya’s friend Micah the butcher’s boy. Sympathetic because of his backstory and becomes a fan favorite. (Dis)honorable mention to Jaime Lannister for attempted child murder.

Omni Man from Invincible, killed children with the destruction he caused in Chicago, but undergoes a redemption arc.