Question:  Hedz was a children's satirical show with voices provided by Kate O'sullivan and what British voice actor and screenwriter who provided the voices in Thomas & Friends?

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Richard McGonagle: Richard Francis McGonagle (born October 22, 1946) is an American actor and voice actor, who is known for his voice over work in video games, movies and television shows.  He is also known for voicing Colonel Taggart in "Prototype", Orlovsky in "", Mr. Incredible through various "The Incredibles" projects, Victor Sullivan in the "Uncharted" franchise, Four Arms and Exo-Skull in the "Ben 10" franchise, Bato in "", Dr. Peace in "No More Heroes", Eight Armed-Willy in "The Marvelous Misadventures of Flapjack", Dr. I.Q. Hi in "Duck Dodgers", Apocalypse in "", Ed Machine in "Scooby-Doo!  Mystery Incorporated", Tom Sheldon in "Just Cause", Abin Sur in "", Bill the Wrangler in "", and provided additional voices for "", "", "World in Conflict", "The Rise of the Argonauts", "", "Regular Show" and "Samurai Jack".

Newzoids: Newzoids is a British topical satirical puppet/CGI sketch show that is aired on ITV and is a co-production between Citrus Television and Factory.  The show has a similar style of presentation to that of "Spitting Image", a show it has been compared to, in that it features comedic satirical scenes that spoof current events at the time of each episode's broadcast, with many well known celebrities of different fields (e.g. politics, entertainment) often portrayed in a satirical fashion, with voices provided by impressionists Jon Culshaw, Debra Stephenson and Lewis MacLeod, all current stars of the similarly-themed BBC Radio 4 comedy "Dead Ringers".

Matthew Géczy: Matthew Géczy (born August 23, 1964 in the state of Georgia) is an American movie and television actor, voice actor and voice director based in Paris, France.  He has acted in several films for television and cinema, with directors such as Brian De Palma and Thomas Vinterberg.  He has been a voice actor in advertising campaigns, documentaries, video games, internet media and in the field of animation.  He has provided voices for productions such as "Code Lyoko", "Casper's Scare School", "Ratatouille", and "Persepolis".  He played a voice acting role in video games such as "Rayman 2", "", "XIII" and "Amy".  He has also worked as the voice director for numerous animated television series including the Children's BAFTA-nominated series "Eliot Kid" (BBC, ABC Australia, Cartoon Network), "Mouk" (Disney Junior), "I.N.K. Invisible Network of Kids" (Pop, ABC Australia), Season 2 of "Casper's Scare School", and is currently in production for Season 2 of "The Mysterious Cities of Gold" and "The New Adventures of Lassie" for DreamWorks Classics.

Gary Martin (actor): Gary Martin (born Gary David Grant, 18 June 1958 in Ealing, London) is a British voice actor and actor who has been in the acting industry since the early 1980s.  His first recorded acting credit is as a chauffeur in the television series "Nobody's Perfect".  He has since gone on to perform in over 60 roles, either as a voice actor or actor.  Martin is well known for his vocal range, and has recorded voiceovers for multiple American and British commercials and film trailers.

Keith Wickham: Keith Wickham (born February 9, 1965) is a British voice actor and screenwriter known for providing the voices of various characters in the children's television series "Thomas & Friends".

Hedz: Hedz was a children's satirical show produced by BBC Scotland for CBBC.  Hedz parodied various celebrities and politicians as large cardboard cut-outs over people's faces (sometimes with clothing that resembles the celebrity).  Voices were provided by Tim Dann, Rupert Degas, Peter Dickson, Keith Wickham, and Kate O'Sullivan.

El Nombre: El Nombre is an anthropomorphic Mexican gerbil character, originally from a series of educational sketches on "Numbertime", the BBC schools programme about mathematics.  He was also the only character to appear in all "Numbertime" episodes.  His voice was provided by Steve Steen, while the other characters' voices were provided by Sophie Aldred, Kate Robbins, and (from 1999) former "Blue Peter" host Janet Ellis.  For the ninth (and final) series of "Numbertime" in 2001, Michael Fenton-Stevens also provided voices of certain other characters in the "El Nombre" sketches.

Kate Robbins: Kate Robbins (born 21 August 1958 in Margate, Kent) is an English actress, comedian, singer and songwriter.  She came to prominence in the early 1980s when she scored a No.2 hit on the UK Charts with the song "More Than in Love", while she was appearing in the TV soap opera "Crossroads".  She went on to become a prolific voice actress, most notably for nine years with the satirical show "Spitting Image".

Tim Dann: Timothy "Tim" Dann is a British voice-over artist, actor and writer.  He is best known for his voice work on CITV, the comedy shows Hedz & OOglies.  He also co-created and wrote OOglies with fellow writers Nick Hopkin & Austin Low.  In 2009, he also provided the voice of the Total Intelligence Mechanism in the CBBC series Wait For It. . ! .

Carlo Bonomi: Carlo Bonomi (born March 12, 1937 in Milan) is an Italian voice actor and actor.  He voiced many characters for the Italian advertising show "Carosello".  The language of noises he had developed and used for the earlier Osvaldo Cavandoli's "La Linea" from 1971 to 1986, was reinterpreted for the claymated TV series "Pingu" on SF DRS during its first four seasons produced between 1986 and 2000, where Bonomi voiced all the characters without a script.  When the show was renewed for a 5th and 6th season in 2003 and 2006, Bonomi was replaced by voice actors David Sant and Marcello Magni.  In 1984 he provided the laughter voices for the cartoon series "Stripy."  In 1985 he recorded the railway announcements for the central station of Milan which remained in use until 2008.  In 2008 he acted the voices for the yellow tribe in "Spore" and "The Garfield Show".

Supporting paragraphs: Hedz Keith Wickham
Answer: Keith Wickham