In 2024 Greg co-created and wrote Central Intelligence, a scripted audio series for BBC Radio 4 and BBC Sounds starring Kim Cattrall and Ed Harris. It is now the most downloaded scripted series ever on BBC Sounds. He also wrote all 10 episodes of series 2, which was recorded in London, New York and Los Angeles in March 2025.

In 2024 he also wrote the book In the Dead of Night, about the arrest and conviction of Greg Lynn, published by Allen & Unwin in November, 2024. It has already been optioned by a leading Australian production company and is in development with a major international streamer.

In 2023 Greg was showrunner (producer and co-writer) on Human Error a 6x1hr drama series for the Nine Network.

From 2001-2018 Greg was Head of Drama for Screentime. Notable productions included:

Pine Gap (Netflix), Wolf Creek (STAN mini-series), Janet King (SI-S3, ABC), Anzac Girls (ABC), Bikie Wars (Ten – adapted from the book by Sandra Harvey & Lindsay Simpson), Crownies (ABC), cloudstreet (Foxtel – adapted from the novel by Tim Winton), False Witness (UKTV), Underbelly (S1-S6, Nine – adapted from the book by John Silvester & Andrew Rule), The Society Murders ( Ten – adapted from the book by Hilary Bonney), Mary Bryant (Ten/ITV), Jessica (Ten – adapted from the novel by Bryce Courtenay), MDA (S1-S3 ABC), The Potato Factory (Seven – adapted from the novel by Bryce Courtenay) and My Husband, My Killer (Ten)

He has won 7 Awgie Awards for screenwriting and 3 AFI/AACTA Awards for producing.