Thomas & Friends series 21
Thomas & Friends is a children's television series about the engines and other characters on the railways of the Island of Sodor, and is based on The Railway Series books written by Wilbert Awdry.
This article lists and details episodes from the twenty-first series of the show, which started airing on 18 September 2017 in the UK and on 15 December 2017 in the US. The series was narrated by Mark Moraghan, in what was his last series. This was the first series to air on the Nick Jr. Channel in the United States.
This series became the first to have engines and vehicles move their bodies as opposed to being static as they had been in the previous series.
Episodes
Voice cast
Lucy Montgomery, Colin McFarlane and Nicola Stapleton officially join the cast from that year's special. Stapleton officially takes over the role of Rosie from Teresa Gallagher in the UK and Jules de Jongh in the US while Rob Rackstraw officially takes over the role of James in the UK from Keith Wickham, with a British accent and a slightly different voice.| Actor/Actress | Region | Role |
| Mark Moraghan | UK/US | The Narrator |
| John Hasler | UK | Thomas |
| Joseph May | US | Thomas |
| Nigel Pilkington | UK/US | A Passenger |
| Nigel Pilkington | UK | Percy |
| Christopher Ragland | US | Percy |
| Christopher Ragland | UK/US | Troublesome Trucks |
| Keith Wickham | UK | Edward, Henry, Gordon and Harold |
| Keith Wickham | UK/US | Harvey, Glynn, Salty, Den, Stafford, Skarloey, Arlesdale Bert, Bertie, Sir Topham Hatt, Dowager Hatt, Lord Callan, Farmer Finney, The Man in Sea Green Shirt and Glasses, The Grumpy Passenger, The Man in Whitish Brown Shirt and Brown Shorts and The Woodsmen |
| Rob Rackstraw | UK | Toby |
| Rob Rackstraw | UK/US | James, Donald, Big Mickey and The Thin Clergyman/Wilbert Awdry |
| Kerry Shale | US | Henry, Gordon and Harold |
| Kerry Shale | UK/US | Diesel, 'Arry and Kevin |
| William Hope | US | Edward, Toby, The Duke of Boxford and Farmer McColl |
| William Hope | UK/US | Iron Bert |
| Teresa Gallagher | UK/US | Belle, Annie, Clarabel, Judy, Lady Hatt, Stephen Hatt, Bridget Hatt, Some Children, The Chubby Little Boy, The Lady in Yellow Dress and Hat, Albert's Wife, Ginger Haired Boy, School Boy, School Girl and The Blonde Haired Boy |
| Teresa Gallagher | UK | Emily, The Duchess of Boxford and Some Children |
| Jules de Jongh | US | Emily, The Duchess of Boxford and Some Children |
| Matt Wilkinson | UK | Spencer, Cranky, The Duke of Boxford and The Dock Manager |
| Matt Wilkinson | UK/US | The Bird Watcher |
| Glenn Wrage | US | Spencer and Cranky |
| David Menkin | US | Porter |
| Steven Kynman | UK | Porter |
| Steven Kynman | UK/US | Paxton and Dart |
| David Bedella | UK/US | Victor and The Mayor of Sodor |
| Bob Golding | UK/US | Stephen and Sidney |
| Michael Legge | UK/US | Luke |
| Miranda Raison | UK/US | Millie |
| Mike Grady | UK/US | Sir Robert Norramby |
| Joe Mills | UK/US | Douglas |
| Maggie Ollerenshaw | UK/US | Henrietta |
| Tim Whitnall | UK/US | Jerome and Reg |
| Tom Stourton | UK/US | Rex, Terence and The Fat Clergyman/Teddy Boston |
| Rasmus Hardiker | UK/US | Phillip and Troublesome Trucks |
| Tracy-Ann Oberman | UK/US | Daisy |
| Lucy Montgomery | UK/US | Hannah and Carly |
| Colin McFarlane | UK/US | Bulgy and Bertie's Driver |
| Nicola Stapleton | UK/US | Rosie |
| - | UK/US | - |