Multiple fingers on an aliens hand is possible, but no one can know for sure until they meet one.
Yes. Some alien races have three fingers on each hand.
Yes. Some alien races have two fingers on each hand.
If there are real aliens somewhere in the world, they could possible have seven fingers on each hand.
No matter how often you ask, the only honest answer is that nobody has found ANY alien races so far, so nobody really knows anything about them for sure.
Probably. As nobody has discovered an alien life form (yet), we can't be certain that they would even have hands. However, the possibilities are so vast that there probably would be a few with eight fingers on each hand.
it is possible, but we don't know for sure untill we meet one or get an image from the hubble space telescope.
Two pupils in the eye would be eerie,and perhaps some alien races have them.
It is feasible that some alien races could have a chain of spots on each arm. However, there is no proof that aliens exist.
If aliens exist, some alien races could possibly have four tentacles on each arm instead of hands.
There are no alien races in Deadman Wonderland (But in the Deadman Wonderland universe, and fan-fiction also; there are trillions of them (with hundreds of thousands of them in each galaxy)).
There are no alien races in Code Lyoko (But in the Code Lyoko universe, and fan-fiction also: there are trillions of them (with hundreds of thousands of them in each galaxy)).
There are no alien races in Cowboy Bebop (But in the Cowboy Bebop universe, and fan-fiction also; there are trillions of them (with hundreds of thousands of them in each galaxy)).