Warren Lewis

, also credited as Warren Green, created artwork used in BBV's P.R.O.B.E. Case Files shorts as well as the covers for The Brigadier Adventures audio series, including Memories of Tomorrow, New Pastures and Necessary Force. He helped edit covers for other Audio Adventures In Time & Space such as Lucifer and the audiobook adaptations of The Airzone Solution and Cyberon. He also wrote the Case File Living Fiction.

He helped edit the cover for Cyberon by Arcbeatle Press.

He also created the logo for Time Travel TV's 2021 documentary Lockdown: The Doctor Who Fans' Survival Guide.

As one of the main creators of the P.R.O.B.E. Case Files shorts, he was interviewed in  Making P.R.O.B.E. Online.