Dirty Dan

Dirty Dan is a tough-talking, no-nonsense detective turned bounty-hunter from the future who has a reputation for being one of the most successful bounty-hunters in the universe but also one of the most difficult to keep in employment as he often switches sides when a better offer comes his way: unlike many bounty-hunters he is known to do jobs for more than just monatery rewards: he has captured criminals in exchange for food, shelter and many other "special rewards".

Origin
Dirty Dan was born in the future, roughly around the year 2068, in his world he was a detective known for his questionable tactics and earned the nickname "Dirty" Dan as a result - he would lose his right arm in a battle with a space-pirate known as Attilla and had to have it replaced with a cybernetic-replacement.

Realizing his new upgrade made him stronger and better than any other law-enforcer in his time he quit his job and started hiring himself out as a bounty-hunter and toured the galaxy hunting down many heroes and villains who had a bounty on their head and has even traveled back in time a few times in order to hunt down especially tricky customers or to try ad hone his skills on the heroes and villains of the past: oddly Dirty Dan's time-traveling seems to cause very little in the way of paradoxes and it is not yet explained how he manages to prevent such side-effects from occurring.

Powers
Dan is a cyborg who has replaced his right-arm with a mechanical-arm capable of turning into any number of blades, guns or other weapon/tool he desires - it also bestows him superhuman strength in that arm - he is also in possession of advanced gadgets such as a hover-bike that can travel at Mach-1, grenades filled with stun-gas, tracker-chips and a v-net feeder that allows him to eavesdrop in on usually restricted files and channels. He is also in possession of a wrist-mounted time-machine that allows him to travel backwards and forwards through time, this time-machine is limited in function as he can't go back further than 1900AD or any further than 2098AD.