Tall in The Mr. Men Show (UK version), Corneil in Watch My Chops, Mr. Mouseling and most of the male voices in Angelina Ballerina, Nelson the Elephant, Reginald the Lion, Victor the Crocodile and the others in 64 Zoo Lane, Frank the Koala, Archie the Crocodile and Sammy the Shopkeeper in The Koala Brothers and Ol' Graham the Galleon, H.P.
[citation needed] He voiced Polluto in Tommy Zoom, the first in-house BBC animation production, The Professor, Pipsquawk, Trevor and Mr. Crumble in Frankenstein's Cat and in 2009, participated on voice in Disney Channel's Jungle Junction, for then Playhouse Disney and Spider Eye Productions.
[citation needed] Other cartoons include: Vampires, Pirates & Aliens, Tails and The Thousand Tasks, The Way Things Work, and The Octonauts in which he plays both Professor Inkling and biologist Shellington.
From 2009 until 2021, Wickham provided the voices of various characters in the CGI series: Edward, Henry, Gordon, James, Percy, Whiff, Dash and Harold in the UK, and Harvey, Glynn, Skarloey, Sir Handel, Bert, Stafford, Salty, Den, Norman, Bertie, Captain, Sir Topham Hatt, Dowager Hatt in both the UK/US, among others.
[citation needed] In 2020, Wickham reprised his roles as Gordon and Sir Topham Hatt in Rainbow Sun Productions' 20th anniversary celebration reading of Thomas and the Magic Railroad.