The Young Storytellers will fete HBO at its annual Biggest Show fundraiser on Oct. 18.

HBO has long been a benefactor of the non-profit org that offers screenwriting classes in public schools in Los Angeles and New York. YS coordinates volunteer mentors from the industry who work one-on-one with students over an eight-week period to write short screenplays. At the close of the program, the screenplays are brought to life in staged readings with professional actor.

A selection of screenplays penned by fifth graders will be showcased at the Biggest Show, with help from such thesps as Stephanie Beatriz, J.B. Smoove, Jermaine Fowler, Tony Hale, Molly Shannon, and Max Greenfield.

Also as part of this year’s event at LA Live’s Novo, YS is establishing the Andrew Barrett Mentor Award to recognize extraordinary contributions by mentor volunteers. The first recipient is Andrew Levine, who has been a mentor with YS for 19 years.

Barrett co-founded the organization in 1997 with a group of friends that included Brad Falchuk, exec producer of “American Horror Story” and “American Crime Story,” among other shows.

(Pictured: Stephanie Beatriz, J.B. Smoove, Jermaine Fowler)