[6] In 2008 Basden appeared as the resident musician for the second series of the BBC Radio 4 comedy show Mark Watson Makes the World Substantially Better, replacing Tim Minchin.
He played Dan the sound engineer in the 2016 film David Brent: Life on the Road, and Jeremy Corbyn in the 2018 Royal Wedding special of The Windsors.
Brian Logan, writing for The Guardian, gave it a four out of a possible five stars and describing it "an idiosyncratic and highly enjoyable piece performed beautifully by a crack cast of upcoming comics",[16] while Dominic Cavendish for The Daily Telegraph called it "astute (and) stingingly amusing".
In addition to writing the adaptation, Basden appeared, alongside Tim Key, Jonny Sweet, Anna Crilly and Katy Wix.
[18] His play Joseph K, based on Franz Kafka's novel The Trial and starring Tim Key, was longlisted for the 2011 Evening Standard Theatre Awards Most Promising Playwright: it also received positive reviews from The Guardian[19] and The Daily Telegraph.