Well spawn is his own comic but there have been crossover with Dc in the last like I own a Batman vs Spawn comic.
Also how could you not want to be cyborg! He is freaking amazing!
Good sir you got some awesome potential here! I like the sound of a Teen Titan Roleplay.
If I had to give a character some thought I would like to pick Cyborg
But for a character not of the Teen titans I have two ideas in mind with being
Spawn or Deathsroke.