Gary also likes to engage in chit-chat with the squirrel he encounters in the park every day, imagining the other side of the conversation. He doesn’t have many mates, see: a couple of blokes he watches football with maybe, or the occasional exchange with the cantankerous old woman next door. Like Spike Milligan, Mortimer has managed to use a novel for his distinctive comedic voice’ – The Telegraph On 17 November 2007, Mortimer appeared as Reeves' hairdresser, Carl, in the weekly radio sketch show on BBC Radio 2 entitled Vic Reeves' House Arrest. [13] In July 2002, Mortimer fought and defeated Les Dennis in the BBC's first Celebrity Boxing match, as part of Sport Relief 2002.

The 10 most surprising truths we've learnt from the guests on Would I Lie to You?". Radio Times. Immediate Media Company Ltd . Retrieved 13 August 2019.Vic Reeves and Bob Mortimer webchat – as it happened". The Guardian. 16 June 2015 . Retrieved 13 November 2020.

Also in 2005, Mortimer voiced the character of Father Nicholas in the animated BBC Three series Popetown. The show was not broadcast by the channel, for fear of offending Catholic viewers, though it saw a DVD release later that year. [20]

In April 2010, Mortimer appeared on the Sky1 panel show A League of Their Own, on Andrew Flintoff's team. In June and July 2018, Mortimer teamed up with his longtime friend and fellow comedian, Paul Whitehouse, in a BBC2 six part comedy series, Mortimer & Whitehouse: Gone Fishing. The two friends, who have both suffered from heart conditions, shared their thoughts and experiences while fishing at a variety of locations around the UK. [23] Five series of the programme have aired to date; a book was released in 2020, [24] series 4 and a Christmas special aired in 2021. [25] [26] There are dirty cops, a barista named Wayne who wears tight t-shirts to best show off his biceps and an eccentric neighbour Grace, and her dog Lassoo.