The difference is that the general public does not know her real name. And what makes her such a good actress is that she goes unrecognized from show to show, thus creating an actors dream job.
With her recurring roles on Friends, Everybody Loves Raymond, as well as memorable characters on episodes of Seinfeld, How I Met Your Mother and others too numerous to mention, Maggie Wheeler has proven time and time again that she is the real deal.
She is one of those rare actors that consistently delivers top notch performances without audiences ever connecting her with her previous character. Look for the name Maggie Wheeler in the credits, because most likely you won't be able to distinguish her from role to role. She's that good and the reason she's my pick for the day for Not Very Famous...but should be.