Sorry this piece is so short, but the first cutscene for him is really quick.
Entei, Suicune, and Raikou race up the mountain to reach the peak and gate, Entei reaching it first. The other two fade away as Entei walks through the gate, fading into a tall, lean redhead with bright green eyes.
Man: "Well, well, well... if it isn't Marluxia and Demyx?"
He chuckles, and the two people he referred to back away.
Marluxia: "No! You shouldn't be here!"
Demyx: "Marluxia, don't just stand there, run!"
The redhead simply smiles sweetly.
Man: "That's not very nice of you. Is that how you greet an old friend on this island?"
Marluxia hisses.
Marluxia: "You were never anyone's friend. You have no idea what you've done to that poor child! Broken! You broke that child!"
Man: "It isn't my fault that children are weak beings. We can't all be as compassionate and manly as you, Marluxia..."
There's a flash of light.
Demyx: "No! Marluxia!"
Man: "You're next, my Demyx."
Demyx: "NO!"
Flash.
*gasp* Who's that Pokemon?
...*shrug* dunno.