Kevin Levin (TNG)

Kevin Ethan Levin is a Human/Osmosian hybrid and is a teammate of Ben's Team. When Kevin first appeared in the original series, he quickly became one of Ben's most notable nemesis. However, he reformed in Alien Force, and then became one of the main hero characters. However, following the events in The Forge of Creation, he becomes an insane villain again until his sanity was restored in Absolute Power Part 2.

Appearance
Kevin had grown into a tall and muscular man. His eyes now lack the black marks. His normal attire is a tight black long sleeve shirt with gray on it, black jeans, and black combat boots. His hair, though still long, is styled into a choppy mullet, and a beard. After he goes through a second mutation, an unbalanced mixture of various matters, the transformation completely destroyed his clothes, except his briefs. As a result, Kevin had to wear an I.D. mask in public to appear human. In his second mutation he looked like some solid materials. (stone, wood, Taydenite and metal) During Kevin's time as Ultimate Kevin, his appearance is again an unbalanced mixture of various aliens that were currently accessible to Ben through his Ultimatrix.

Personality
Kevin's personality is much more layed back than when he was a teen. He still uses is street cred to help with plumbers missions, a trait that Ben has come to appreciate.

Powers and Abilities
Kevin has the ability to absorb the energy and matter of anything though his body at will and utilize it in various ways. This includes, but is not limited to, electricity, DNA, memories of other life forms, powers of other life forms, mana, fire, water, plasma, chemical energy, kinetic energy and matter.

Energy Absorption
After absorbing energy, Kevin can channel energy through his hands to manipulate technology, discharge it as an energy blast or use it to speed up cellular regeneration to increase his strength or recover from injuries at an accelerated rate. However, the energy will dissipate over time or through excessive use, so he is required to recharge.

However, if Kevin absorbs energy, the energy will cause Kevin to become mentally unstable. Storing energy for long periods of time will worsen his instability.

When Kevin has recently absorbed energy, he develops black marks around his eyes. This is a side effect of absorbing energy.

Power Absorption
Similar to his ability to absorb energy, by absorbing the DNA, metabolism, and life force of other life forms, Kevin can use it as nourishment to sustain his health and strength. Absorbing all of someone's energy will kill them. Kevin can use the energy to acquire the creature's powers and undergoes mutation to accommodate the absorbed abilities.

Despite complete access to any of these absorbed abilities at anytime, they aren't as strong as their pure forms, as noticed by Diamondhead who estimated that they are only about 1/10 their full power, as seen when he was able to catch and crush Kevin 11's crystals with his bare hands while the others shattered upon hitting him. This was proven correct by Aggregor. He also stated that when Osmosians absorb the life force of other beings, the new powers can only used temporarily unless they were to drain all of that life form's energy, including life force.

Matter Absorption
Kevin can absorb the properties of solid materials, transmuting himself into a living form of whatever material he has absorbed and subsequently use it to proportionately increase his physical strength and durability.

Depending on the amount of the absorbed material Kevin has available, and how he distributes it, Kevin can either coat his body, or part of it, in the material as a second skin like armor, or completely convert his body, or part of it, into a living version of the material. The amount that Kevin requires dempends on the density of the material.

Other Skills andAbilities
Even without his absorption powers, as an Osmosian, Kevin is shown to be stronger than an average human. While not to the same extent as aliens like Four Arms, Kevin is capable of lifting/throwing the combined weight of several people with little strain. He is also capable of resisting impacts and blunt force trauma that would severely injure an ordinary person with moderate discomfort.

Despite lacking a proper normal education, Kevin possesses a vast scientific and technological knowledge of alien paraphernalia; he once mentioned that he learned Astrophysics on the streets. Kevin also has great analytical and deductive skills, having been able to determine specifically what happened in a battle between Aggregor and the Plumbers several hours after the battle, greatly impressing his friends and even gaining a compliment from Max.

Trivia

 * Kevin went trough a total number of 4 mutations due to the Omnitrix