5. Admiral DuGalle
The death that ended the Brood War story and had a heartfelt letter being sent home to his wife. Not only one of the best deaths, but one of the best moments of the series.
4. Arcturus Mengsk
Well we all knew it was going to happen eventually. It is like that guy who you know has something coming to him and you jsut want him to get it. You know like Joffery in Game of Thrones. Well when this finally happened it was quite satisfying.
He didn't get a fancy cutscene or anything like that, but still one of the most likely protoss out there that you just felt for. That and the fact that it was betrayal well that says it all.
2. Tychus Findlay
You went through all of Wings of Liberty with Tychus and Raynor, but I don't think anyone expected the way it ended until it ended. RIP Tychus.
Was there any doubt? He gave it all just so everyone else would have a chance at life. We are still fighting for what he gave us a chance for. En Taro Tassadar.
There they are my most memorable deaths throughout the Starcraft series before Legacy of the Void. Just have to prepare ourselves with what happens during it!