Joker and other characters from Fire Force in front of a glowing symbol HD Wallpaper

Three characters are depicted in the image. On the left, a man with graying hair and a stern expression wears a dark uniform with metallic shoulder pads. In the center, a figure in a white hooded robe stands before a large, glowing golden symbol. On the right, a young man with heterochromatic eyes and a worried expression wears a dark hooded cloak.