HOLLY HAMILTON GRADUATES ON AN ALL-NEW "MYSTERY GIRLS," AIRING WEDNESDAY, JULY 23rd, 8:30PM ET/PT

Joe E. Tata ("Beverly Hills, 90210") Guest Stars

Burbank, CA (July 18, 2014) - The hallowed halls of West Beverly High are filled with familiar faces when "Beverly Hills, 90210" star Joe E. Tata (Nat) guest stars on an all-new episode of "Mystery Girls," airing on Wednesday, July 23rd at 8:30 p.m. ET/PT.

In "High School Mystery," Holly's high-school principal Mr. Frost (Joe E. Tata) hires the Mystery Girls to make sure he does not become the target of the senior prank before he retires. When the detectives go undercover at West Beverly in order to stop the culprit, Holly realizes this job is her chance to have the normal high school experience she never had but always wanted. Desperate to fit in, Holly becomes obsessed with being popular and momentarily forgets about their case while Charlie takes her role as a gym teacher a little too seriously. Once the mystery is solved, Holly asks Mr. Frost for her long-awaited diploma, prompting the student body to start chanting "Holly Hamilton Graduates."

"Mystery Girls" stars Tori Spelling as Holly, Jennie Garth as Charlie and Miguel Pinzon as Nick. The comedy series is executive produced by Tori Spelling, Jennie Garth, Andy Gordon ("Last Man Standing"), Shepard Boucher ("Men at Work"), Maggie Malina ("Single Ladies") and John Ziffren. Tori Spelling and Shepard Boucher also serve as co-creators.

Part of the Disney/ABC Television Group, ABC Family is distributed in over 97 million homes. ABC Family features programming reflecting today's families, entertaining and connecting with adults through relatable programming about today's relationships - told with a mix of diversity, passion, humor and heart. ABC Family's programming is a combination of network-defining original series and original movies, quality acquired series and blockbuster theatricals. For 2014, ABC Family has launched the "WATCH ABC Family" authenticated service which allows viewers with participating TV subscription services access to 24/7 live viewing of the network, as well as continued on demand access to such popular series at home and on the go via a wide array of devices. ABC Family is also the destination for annual Holiday events with "13 Nights of Halloween" and "25 Days of Christmas." ABC Family. A New Kind of Family.