John Hollingworth is an actor and playwright. His plays include Multitudes (Tricycle Theatre); Animal Wrongs (Arcola); Broken Window Theory (Soho); and Blue Yonder (Tristan Bates).

Mark Hollmann is a musical-theater composer and lyricist who received the Tony Award, the National Broadway Theatre Award, and the Obie Award for his score to Urinetown: The Musical, which itself won Outer Critics Circle, Drama League, and Lucille Lortel Awards for Best Musical. In addition, Urinetown was selected as one of the season’s best plays in The Best Plays of 2000-2001: The Otis Guernsey/Burns Mantle Theatre Yearbook. From its successful run on Broadway, Urinetown has had productions across the US and throughout the world, including Japan, South Korea, Germany, Australia, Canada and the Philippines. His other musicals as composer/lyricist include Bigfoot and Other Lost Souls; Yeast Nation (the triumph of life); The Man in the White Suit; Alchemist: The Musical; Jack the Chipper; The Girl, the Grouch, and the Goat; Kabooooom!; I Think I Can; Deal with It! and Fare for All. For television, he has written songs for the Disney Channel’s Johnny and the Sprites. Mark has served on the Tony Nominating Committee and currently serves on the council of the Dramatists Guild of America and the advisory council of the Dramatists Guild Fund. He is a member of the American Society of Composers, Authors and Publishers (ASCAP), and lives in New York City with his wife, Jillian, and their sons, Oliver and Tucker.

Robert Holman (1952–2021) was a British playwright whose work has been produced by the Royal Shakespeare Company and the Royal Court Theatre, as well as in the West End and elsewhere. He is celebrated for the passionate humanity and quiet intensity of his plays, especially for his triptych of short plays, Making Noise Quietly, which was first seen at the Bush Theatre, London, in 1986, and has since been revived and adapted as a film (2019).

His plays include: Mud (Royal Court Theatre, 1974); German Skerries (Bush Theatre, 1977, and revived at the Orange Tree Theatre, 2016); Rooting (Traverse Theatre, 1979); Other Worlds (Royal Court Theatre, 1980); Today (Royal Shakespeare Company, 1984); The Overgrown Path (Royal Court Theatre, 1985); Making Noise Quietly (Bush Theatre, 1987, and revived at the Donmar Warehouse, 2012); Across Oka (Royal Shakespeare Company, 1988); Rafts and Dreams (Royal Court Theatre, 1990); Bad Weather (Royal Shakespeare Company, 1998); Holes in the Skin (Chichester Festival Theatre, 2003); Jonah and Otto (Royal Exchange Theatre, 2008, and revived at the Park Theatre, 2014); A Thousand Stars Explode in the Sky, co-written with David Eldridge and Simon Stephens (Lyric Theatre, Hammersmith, 2010); A Breakfast of Eels (Print Room at the Coronet, 2015); and The Lodger (Coronet Theatre, London, 2021).

He also wrote a novel, The Amish Landscape, published in 1992.

Jacqui Honess-Martin is a playwright and theatre director. Her plays include Pine (Hampstead Theatre, 2015) and Tell Out My Soul (Public Theatre, New York, 2008). As Artistic Director of InSite Performance she has written and directed We Have Fallen (IdeasTap Underbelly Award, Edinburgh); SMITH (The British Museum); Antigone (Walworth Council Chambers); and directed Abyss and Larisa and the Merchants (Arcola Theatre).

Martin Hooper is a London-born playwright. He is the co-author with Jon Bradfield of A Hard Rain (Above the Stag Theatre, 2014), as well as several adult pantomimes produced by Above the Stag, including Jack off the Beanstalk (2013). He co-wrote the book for Gay School Musical (Above the Stag, 2009). He has also written scripts for online training modules and training films.

Russ Hope is an author and theatre director. He was born in London in 1983 and studied at the University of Warwick. His work as a theatre director includes Brooklyn (Cock Tavern Theatre), The Last Five Years (Apollo Theatre, Shaftesbury Avenue), Wired and Finishing the Hat (King’s Head Theatre), Knickerbocker Glories (Union Theatre, Southwark), Lucky Nurse and other short musical plays and The Fix (Edinburgh Festival) and Square-Eyed (Etcetera Theatre Club).

David Horan is a theatre director and writer, Artistic Director of Bewley’s Café Theatre and a core Acting Tutor at the Lir National Academy, Dublin. Writing credits include CLASS (Dublin Theatre Festival, 2017, co-written with Iseult Golden). Directing highlights include: Beowulf: The Blockbuster by Bryan Burroughs, These Halcyon Days by Deirdre Kinahan (Edinburgh Fringe First Winner), Moment by Deirdre Kinahan (Bush Theatre, London), Moll by John B Keane (Gaiety, MCD/Verdant Productions), Pineapple by Phillip McMahon (Calipo/DTF), Hue and Cry by Deirdre Kinahan (IAC New york Times Critics Pick, Bewleys), Macbeth and Dancing at Lughnasa by Brian Friel (Second Age), In The Next Room by Sarah Ruhl and Three Winters by Tena Stivicic (Lir Academy) and the award-winning Tick My Box! (Inis Theatre) among others.

Marek Horn is a playwright whose work includes: Octopolis (Hampstead Theatre Downstairs, 2023); Yellowfin (Southwark Playhouse, 2021) and Wild Swimming (2019 Edinburgh Festival Fringe, Bristol Old Vic and UK tour).

Owen Horsley is a theatre director. He trained at Drama Centre London and is an Associate Director of Cheek by Jowl. In 2016 he created Bard City, which offers Shakespeare training in New York and London as well as presenting innovative versions of his work.