'', 2005 As an
impressionist, Dennis did voices for
Spitting Image and appeared with Punt as resident support comics on two TV series hosted on the
BBC by
Jasper Carrott. He has also provided voiceover for several adverts, including
Tango's controversial 1991 advertisement
Orange Man. Dennis also appeared twice as a contestant on the topical panel show
Have I Got News for You, including one opposite former schoolmate Self. Punt and Dennis's radio career includes over a decade of performing
Punt and Dennis, ''
It's Been a Bad Week, The Party Line
and the satirical radio comedy show, The Now Show. On The Now Show, Dennis was originally in a line-up including Punt, Mitch Benn, Laura Shavin, Jon Holmes and Marcus Brigstocke. He is friends with Chris Morris and has had cameos on Brass Eye as well as doing the narration for the CBBC show Sam and Mark's Guide to Dodging Disaster''. In December 2009, Dennis joined
Oz Clarke in presenting the 60-minute Christmas special
Oz and Hugh Drink to Christmas broadcast on
BBC Two. In December 2010 the pair returned for a four-part series called
Oz and Hugh Raise the Bar, which puts them in a competition to create a bar featuring only local British food and drinks. Dennis has starred in a number of sitcoms, including
My Hero, in which he played obnoxious
GP Piers Crispin. From 2007 to 2014, he starred in
Outnumbered, a semi-improvised sitcom based around family life and won a
BAFTA nomination in the comedy category for the 2009 Christmas special. On Radio 4 he also featured in the sitcom
Revolting People which, like
Outnumbered, was co-written by
Andy Hamilton. Besides his regular television work, Dennis was a panellist on
Mock the Week and appeared in every episode since its premiere in 2005, with the exception of a special episode of the programme that was broadcast as part of
David Walliams'
24 Hour Panel People. He is a regular guest on various
BBC-broadcast comedy
panel game shows such as ''
They Think It's All Over, Would I Lie To You?, QI and has guest hosted Have I Got News for You. In 2011, Dennis hosted the short-lived improvisational comedy series Fast and Loose''. Beginning on 16 February 2012, Dennis and
Julia Bradbury hosted a four-part BBC One documentary series
The Great British Countryside. In February 2021, Dennis started presenting
The Great British Dig on More 4. In the 2021
Bond film
No Time to Die, Dennis cameoed as scientist Dr Hardy in an
MI6 laboratory. ==Personal life==