Answer:
Answers are in order according to how often they appear/speak.
Robin: He has no powers of his own but is armed with gadgets and the skill of kung fu. Throughout the series, you never see Robin's eyes. In the movie Trouble In Tokyo, Robin takes off his entire costume but he wore sunglasses. Robin knows Raven the best out of all the Teen Titans. He's a kid but very powerful. Robin is sometimes considered by the Teen Titans to be too serious.
Starfire: She is a beautiful alien from the planet Tamaran. Tamarans look just like humans. She has the ability to fly, shoot starbolts, super-strength and absorb language by kissing a person that knows that language. When Robin and Starfire first met, Starfire kisses Robin to learn English. At that time, Robin didn't know that it was to absorb language so he has liked her ever sence and you will see their love for each other in the movie Trouble In Tokyo.
Beast Boy: He is the joker and more fun than the other Teen Titans. Beast Boy has the power to transform into any animal he wants to at will. This comes in handy many times through out the series.He has green skin and green hair and his transformations are also green. Beast Boy is a vegetarian.
Cyborg: He is half robot so he is super-strong and can shoot lasers and many other things. He an the inventor and made the R-Cycle and the T-Car. One down side to being half robot is that he can't reach full power or he'll wear out his batteries. If that happens he must immediately go back to the Teen Titan's tower and hook himself up to the recharger.
Raven: She is a deep-speaking Titan who can move things without touching them and create force fields. She can also shoot rays. She never really smiles because she fears that, deep down, she is pure darkness, even though she tries her best to be good.
Robin:He Left His Own Dad Batman Because He Was So Mad At him.
H ha! Lol about the Robin thing at the end!!! That was funny......I LOVE RAVEN PPL!!!!!! SHE TOTALLY ROCKS!!!!!! STARFIRE & ROBIN ARE TOTALY MENT 2 B! I ALMOST CRIED WHEN THEY LOOKED IN EACH OTHER'S EYES!