[3] In addition to One Foot in the Grave, Brenman also played Lloyd Drewitt in two series of David Renwick's BBC dramedy Love Soup (2005–8).

He played Mark Thatcher opposite John Wells and Angela Thorne in the political sitcom Dunrulin'.

[4] On the London stage Brenman played Theo in the 2006 European premiere of Steve Martin's The Underpants at the Old Red Lion Theatre - a reworking of Carl Sternheim's 1911 satirical comedy, Die Hose.

Outside London, Brenman played Felix in Elly Brewer's and Sandi Toksvig’s Shakespeare deconstruction The Pocket Dream (York Theatre Royal), Brian in Terry Johnson's Dead Funny (Nottingham Playhouse), toured with Butterflies Are Free, appeared in The Winslow Boy and The Trial of Lady Chatterley (Nottingham Playhouse) and Richard Hope's black comedy about serial killers and the press, Good Copy, in which he played a paedophile priest opposite Robert Bathurst's prostitute murderer (West Yorkshire Playhouse).

In 2008, Brenman completed a UK tour, with Richard Wilson, of Steve Thompson’s political comedy Whipping It Up[6] and featured in a new series of Doctor Who for BBC Radio 7.