Yo, I've got you a nice one:

Name: Gorrath Algervon

Age: 25

Race: Half human, half Xenomorph-Yautia (to some that's also known a as Predalien)

Physical Description: in his human form he is about seven feet tall, his hair is a set of strange, tentacle-like dreadlocks. He wears a pair of heavy black army-boots wich are made even heavier with metal plates (for kicking, he sais), a camo-pants with many pockets, a strange black shirt with waving, ever-changing, green patterns. He also wears a long grey coat. His face is covered with silver, strangely shining scars. Oh, did I forget to mention he is Arab?

Personality: He loves the drill of a fight. He is irritatebly tempered. Kindhearted when calmed down. Allways cold and straight-to-business. He is highly intelligent and has a second sense wich tells him when danger is near.

Skill and Abilities: When he transforms, he turns into a nine-feet tall alien wich has acid for blood, an external and black skull  (with eyeholes), a retractable tongue with a second pair of jaws(all 4 jaws have sharp, silver fangs), strange blades out of his knees and his underarms wich use his acidic blood to cut better, his dreadlocks becomemore tentacle-like, his fingers and toes grow strong and sharp claws and he has reptile-like eyes. Oh yeah, in his transformed state, his clothes are gone. In this form he is much stronger and faster. His blood melts trough literally anyting. When he is running, he can simply ram through walls.

Strenghts: He is good at wall climbing, even in his alien form. He can also walk across ceilings and walls with his alien feet. He can easily punch and kick through his enemies.

Weaknesses: In his transformed state, the part of his head where the dreadlocks grow out of, his head isn't protected by his external skull. Neither in his human or transformed state he can't fly.

Weapons: He likes using shurikens, small throwing sickles, a double-bladed axe and a spiked nunchaku.