Raven

One of the most interesting characters of all of the Titans, she has to be my personal favorite Teen Titan. She was first introduced in the early 80's, she's an empath that can separate her soul self from herself and can control it with her emotions and mantra. Her life is broken into three different segments, her first life was spent on the temple Azarath, her second life she wore white robes and was known as white raven, her third life is her current life, where she has her young body back.

She is the half-breed demon daughter of a human mother, Arella, and the interdimensional demon Trigon, she grew up in an alternate dimension of Azarath. There she was taught to be a pacifist and to control her emotions, because if she showed any emotions her father would continue to gain influence over her. She formed a team called the new Titans, vowed to help her destroy her father before he could escape from his dimension to come over to hers. That was the whole point of the Titans, after a fall out with them her emotion ran ramped enough that her father was able to kidnap her and take her to his dimension. She was eventually rescued by the Titans and with the help of her mother was able to trap her father into an inter-dimensional prison where he has remained.

So she thought, Trigon was able to escape his prison and come to Earth where he then destroyed Azarath. Raven became posessed by Trigon, the Titans were then forced to kill her, but she was resurrected free of her fathers evil.

This became the era of White Raven, she was free of her fathers control and thus she began to use her emotions and she then learned that she had a certain amount of control over other peoples emotions, leading into a plot line of her seducing many of her lovers, including Dick Grayson and the evil Eric Forrester that was trying to use her soul self to regain his humanity. For a time she became posessed by her fathers old demon followers and she became evil, ruining the wedding of two of her friends, Starfire and her old lover Dick Grayson. She was then killed by the titans and her mother tried to create a new body for her.

In her current life, she was forced to leave the titans because of her messed up love for Beast Boy and she lied to the rest of the titans saying it was Beast Boy being not as good a leader as Nightwing.