Michael Clarke Duncan is in the intensive care unit at an L.A. hospital

[Swede]

I hope he is gonna be ok,I've always enjoyed his work.

Michael Clarke Duncan is in the intensive care unit at an L.A. hospital after going into cardiac arrest this morning ... and might have died if not for the swift action of his girlfriend Omarosa Stallworth.

TMZ has learned ... Omarosa discovered the "Green Mile" actor in a state of cardiac arrest just before 2:00 AM.

We're told Omarosa performed CPR and was able to resuscitate the 54-year-old.

MCD was transported to a nearby hospital where he was immediately admitted to the ICU.

Sources tell us ... Duncan's heart rate is now stable and Omarosa is by his side. Doctors are performing tests to figure out why the actor's heart stopped in the first place.

http://www.tmz.com/2012/07/13/michael-clarke-duncan-hospitalized-cardiac-arrest-omarosa/

[RZM]

1. Hope he gets better. I generally like his work

His girlfriend . . . not so much.

[Initech]

2. Oh no!

He was hilarious in "The Slammin' Salmon":

[alphafemale]

3. Hope he's OK.

I was surprised after seeing Green Mile that he really wasn't that HUGE! IT seemed really convincing.

[lastlib]

4. Who's he???

[nolabear]

6. This guy.

I hope he's okay. He's one fine actor.

[Pool Hall Ace]

7. Oh! That guy! I liked him when he

guest-starred on Two and a half Men.

I hope he pulls through!

[nolabear]

5. Oh NO! I really love him. I hope he is okay.

I love a big old man with a big old voice, and he's always seemed like a wonderful guy.

[EastTennesseeDem]

8. God I hope he's okay.

I would never ever be able to watch The Green Mile again if he were to pass this young.