Be warned, there will be spoilers for Guardians of the Galaxy below, so if you haven't seen it yet, proceed at your own risk.

Even before Guardians of the Galaxy hit it big at the box office, Marvel Studios announced at Comic-Con that filmmmaker James Gunn is returning to direct Guadians of the Galaxy 2. One of the big questions that will need to be addressed in this follow-up is the identity of Peter Quill's (Chris Pratt) father. During a new interview with Empire, James Gunn revealed that a select group of individuals knew who Peter's father was before Guardians of the Galaxy even went into production.

"There have been a lot of documents passed around about who Peter Quill's father is, between a select two or three of us. That's been part of the plan since the beginning, that's something I had to work out before we shot the screenplay. We wanted to make sure Yondu's place in everything made sense and it does, so it's all very specific stuff."

Those familiar with the comic books know that J'son, Emperor of the Spartoi Empire, is Peter's father, but that will not be the case in this sequel.

"It's definitely not the character who it is in the comics, I'll say that much."

Guardians of the Galaxy also gave fans the first real look at Thanos, played by Josh Brolin, after the Mad Titan's brief appearance at the end of Marvel's the Avengers. When asked if the villain will be back in Guadians of the Galaxy 2, James Gunn had this to say.

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"He will show up [in the sequel] if he helps our story and he will not show up at all if not. Thanos is not the most important thing in Guadians 2, that's for damn sure. There's the Guardians themselves and other threats the Guardians are going to be facing that are not Thanos. I think Thanos has been lonely for a long time. He can handle it. He's used to his loneliness. He's got some other kids out there. He's got to look after them. Nebula's probably the sweetest of them, which tells you what his kids are like..."

Who do you think Peter Quill's father will be in Guadians of the Galaxy 2? Chime in with your thoughts below.