that doesn't make sense in the article though.
"Also reaping the benefits of the deal was Chappelle's longtime partner, Neal Brennan, a director, executive producer, co-creator and writer of the series. While terms of the deal for Brennan were not disclosed, it is one of the richest deals in basic cable for a multihyphenate."
EDIT: did some googling and it appears to refer to a person who is active in more than one area, eg:
"Lindsay Lohan, Hollywood's latest It Girl thanks to sparkling performances in such hit flicks as Mean Girls and Freaky Friday, is officially a multihyphenate, having just inked a record deal with Tommy Mottola's Casablanca Records."
so she's an actress and a singer, ergo, a multihyphenate.