Took a while to figure this out. I'm proud of the results, and hope that you will be as well.

1. Superman - Spencer Conway

Can you give me a reason this guy shouldn't be Superman?

"Well, he may not be fit enough for it!", you say? Funny that, because I could have sworn that Christopher Reeve was playing a sunken-chested asthmatic before he got the job as Superman. A little time and a personal trainer later, and... well, you know the rest. This fellow, a Portland actor of little notoriety, has a defining characteristic of "looking like Superman". I think he'll do fine.

2. Batman - Michael Fassbender

He's already a fan favorite, and it's obvious why. His only real flaw is that his hair's too light -- and hair can be dyed. He's in great shape, good looking, and a superb actor. In 300 we see him do action scenes (also means he's undergone the infamous "spartan training"), in Inglourious Basterds we see that he can be suave and debonair, easily sufficient to be a perfect Bruce Wayne, and over his career it's clear that he can pull of the intensity of Batman. Give him a voice coach to work on his american accent a little and he'll be golden.

3. Wonder Woman - Bridget Regan

Huh. Nope, I don't see a Wonder Woman there.

"Okay, Joygirl, maybe she looks the part. Can she act it?"

Yup.

I've said my piece.

4. Green Lantern - Jensen Ackles

This one took me a while, and I finally came to Jensen, best known as the boyish and brooding Dean Winchester on the show "Supernatural". He has the perfect blend of cockiness and glaring intensity, he's in perfect physical condition, and he's proven over time that he's a darn good actor.

5. Flash - Bradley Cooper

Another fan favorite, he's funny, good-looking, in good shape, and a damn snappy dresser. Could play Barry or Wally, should he desire, he could easily be comic relief while still being believable.

6. Aquaman - Matthew McConaughey

HAH. I bet you were thinking I mean pretty-boy, slippery-when-wet McConaughey? Nope. In the movie Reign of Fire he showed a few little-known traits:

1) If he puts his Game Face on, he suddenly doesn't look as goofy anymore.

2) He can grow a pretty awesome beard.

3) He's physically intimidating

4) His voice isn't always silly. It can be scary too.

We already know that he does well with water, so he seems like an excellent choice for a more barbaric, bearded, harpoon-handed "King of Seven Oceans" type Aquaman.

7. Martian Manhunter - Arnold Vosloo

ZOMG. A non-black Manhunter? Blasphemy!

If it makes you feel any better, he's technically south african. So... yup.

Anyway, he's perfect. His voice is low and implacably exotic, and his features are similarly lumpy and alien. Paint him green and I think you'll be pleased.

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Bonus round!

8. Hawkman - Gerard Butler

Another fan favorite. I wonder why. Gerard Butler would like you to know: "Rawr."

9. Green Arrow - Ben Foster

Yup.

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Thanks for checking out my list, folks! Hope you enjoy it!

A non-black Martian Manhunter? Blasphemy!!(technically, Martian Manhunter is green)

@majestic99: Suuuure he is. :P But you'll notice that approximately 100% of MM fancasts have him black.

a lot of these choices are similar to the poster I posted, Bridget Reagan and Bradley Cooper as your choices repectively
 
I like Foster as Green Arrow, definitely an underrated actor there

Because he is often depicted shape shifting into a black human....but he is not black. He is from mars. Though on some levels the same factors apply

@Kallarkz said:

Because he is often depicted shape shifting into a black human....but he is not black. He is from mars. Though on some levels the same factors apply

That's what I saying.

@Joygirl said:

@majestic99: Suuuure he is. :P But you'll notice that approximately 100% of MM fancasts have him black.

Yeah, I know, I was just joking. If it was up to me, I would have him in his Martian form most of the time, they keep trying to make him

"human" when MM should be proud of his Martian heritage.

@cattlebattle: Yeah, I tried to take the best of lots of different fancasts, plus a few adds of my own (such as Ben Foster, who is completely awesome and incredibly talented). Being a fan of Legend of the Seeker, however, Bridget Regan was not news to me. :P

They are great choices, I found this fan made poster, I'm not keen on all the choices though, I hate Ryan Reynolds in most capacities, I did not think he was a good choice for Hal Jordan, and honestly I don't think Bales Batman would work on a Justice League..
 

Awww, I love Ryan Reynolds. I actually liked Brandon Routh as Superman too -- but I was determined to use all-new actors, none that had already been in the DC movies.

@Kallarkz said:

Because he is often depicted shape shifting into a black human....but he is not black. He is from mars. Though on some levels the same factors apply

It's the voice. The JLU voice acting fit the character perfectly and he has many characteristics that exude an ethnic quality (i.e. cheek bones).

Love them all but Aquaman's.

@Joygirl: i was gonna disagree with this list but you put jensen ackles as GL (i think he would be better as guy gardner , instead of hal imo)

OH MY GOD, THIS IS PERFECT. Only thing that I don't 110% agree with is Jensen.

*bows, tips hat* Why thank you madam.

Not bad.

Jon Hamm for Superman.

@CitizenBane: What about... y'know... everyone else?

Bridget Regan as wonder woman perfect she is so pretty

Bridget Regan as Wonder Woman... heck yeah!

Bruce Campbell for Superman :P

@cracker_jack said:

Bruce Campbell for Superman :P

*dies laughing*

Good one. :P

That guy does look like Supes...But Henry...kind looks more like Supes.

@Primmaster64 said:

That guy does look like Supes...But Henry...kind looks more like Supes.

I agree, but this guy isn't half bad, I admit.

@Joygirl Very rare that i disagree with you. But Matthew McConaughey as Aquaman? Can't really see that. Though you have my full backing with Jensen Ackles as GL. Though is not really Ryan's fault that the movie was so bad.

@wildvine:

Method to my madness. :P

@Joygirl Allow me to rephrase before you yo-yo me to death. : P

I can see it, It just...IDK, doesn't sit right. Though he would be better then a lot of others.