Complex sentence: Always acting cool, his cynical personality and his "always get the job done" attitude can make him seem like a very cold and dark character, but in the end he aways finds a way to do the right thing.
Split into simpler sentences: Always acting cool, his cynical personality and his "always get the job done" attitude can make him seem like a very cold and dark character. But in the end, he aways finds a way to do the right thing.