25. Cheri Oteri (1995-2000)
Despite Tracy Morgan's qualms with the former Saturday Night Live starlet (reportedly she was difficult behind the scenes), we can't deny that Cheri Oteri was funny as hell. Sure, some of her prominent characters, like Arianna of the Spartan Cheerleaders, grated on after a while, but we'll never forget that first time we saw her appear as Robin Byrd. If you grew up in New York City, it's almost a right of passage as a kid to stumble upon the washed-up porn star's seedy public access show. Cheri could easily have passed for the real thing, and our appreciation levels for the actress went up tenfold.