There are tons of stories about famous people who were told they'd never make it; some of them well known voice actors. (Voice ace Scott Rummell comes to mind. Search for his TED Talk on You Tube).
Oprah was fired from a Baltimore TV station as an evening news reporter because some clueless director said she became too emotionally involved in her stories and was "unfit for television news." (how would you like to be the fool who fired Oprah, and then later be quizzed about it at small talk parties... F-O-R-E-V-E-R).
Hugh Jackman was fired from a 7-11 convenience store job because his boss said he talked too much to the customers.
J.K. Rowling of "Harry Potter" fame was once fired because the boss said she was writing stories on her computer all day, instead of working.
On a more personal level, while I was filling in for our afternoon drive time deejay on WIRK in West Palm Beach back in the 90's, our program director came in the studio to tell me he had passed on some up-and-comer kid named Tim McGraw to do a telephone interview with me because 'he's the son of some famous baseball player (Tug) and I don't think he's ever gonna go anywhere in the recording industry. So I told the promoter NO.' Last time I checked, our program director was still wiping egg off his reddened face. No word if he's still working in radio. Somebody throw him a towel...would you please?
Here in the Bay Area, I've been watching Buzzr TV, which is similar to the Game Show Network. They broadcast old episodes of shows like "Password," "Match Game," "Concentration," "What's My Line?," "Family Feud," "Hollywood Squares," and beyond.
I enjoy watching them as these are shows, and celebrities, I grew up on---many of them now resting peacefully in that big game show hall of fame in the sky. By the way, did any celebrity do more game show panelist appearances than the late Betty White? Almost like every-other-show. Of course, her husband, Allen Ludden, hosted Password. I loved it when Betty would go on Password and her and Allen would tease/squabble a bit. It made for good TV.
Recently, one of the really lovable actresses from "Cheers" passed away. What a surprise I got the other day when Buzzr TV broadcasted Kirstie Alley's appearance on "Match Game" before she became a big star. In her former life, she was an interior designer. Here's a clip of Kirstie on MG. She gave off a ton of confidence and sexiness, even way back then. No doubt some astute talent scout was watching that day. She "auditioned" on a gameshow and got the role of a lifetime on "Cheers." Smart lady.