After Ketchum hears DK question, he nods.
"Medical Officer. What do you mean Stormtroopers look the same?
In term of helmet and our equipments, yes. You cant exactly see us smiling without having us removing our helmet. I will be scolded if I ever remove my helmet.
In term of habit, some Stormtroopers have different attitude.
See Stabbity over at the lounge there? He is a drunkard Stormtrooper.
See Tandaros and Elegant? They are well, quiet and curious at times.
See me over here. Well, I am super hungry Stormtrooper."