Expressionless anime characters may not be as flashy as their more enthusiastic friends and foes, but they are far from dull. Often the kuudere or dandere type, these guys and gals are low energy to the max, rarely wearing their emotions on their sleeves and usually being the bluntest member of their group. This character type can range from comically cool, like Sakamoto from Haven't You Heard? I'm Sakamoto, to tragically indifferent like Neon Genesis Evangelion's Rei Ayanami.
Most of the time, expressing feelings for these characters is either difficult or simply wasted energy, which makes any emotional moment from them that much more powerful and significant. Like anime characters who always have their eyes closed, part of the adventure with expressionless characters is witnessing the kinds of events that inspire a change in their usual demeanor. A smile might come only once in a blue moon, but it’s always worth waiting for, since these anime characters always have the same face.