Like most opportunities, it's all relative. Jacinda Barrett, from the Real World has been building a legitimate theatrical career. Yet, hundreds of other people who've done reality have never worked theatrically. Some have done guest appearances on television shows, either as a character or as themselves. I've caught a few doing commercials. Some comedians have shows that I love, like Mike Rowe on Dirty Jobs. Still others have made a career of going from reality show to reality show. A few "train-wrecks" have even had shows created around them.
You've got to know the tone of the show. There's a difference between doing "the Apprentice" and doing "Bret Michael's Rock of Love." Yet, you can still be Bret Michaels "rock of love" and then WIN Celebrity Apprentice.. Yay Bret!!
My final question is why do you want to act? Do you just want the fame? And if so, do you just want 15 minutes of it?
My colleague Aaron Murphy from RealityHow.com and I, are going to be giving seminars (and teleseminars for those who aren't local) on creating your own shows. in the mean time, sign up for all of his free videos to give you a head start at Reality How and if you're not on my Ezine list yet, be sure to sign up for those dates which will be coming soon! (The box at the top of the blog with sign you up!)