Series 21

The twenty-first season of the television series started airing in the UK on the 18th of September 2017.

Songs

 * Set Friendship in Motion

Chararcters
Oliver, Flying Scotsman, Duncan, Toad and Hugo are also likely to appear.
 * Thomas
 * Edward
 * Henry
 * Gordon
 * James
 * Percy
 * Toby
 * Donald and Douglas
 * Emily
 * Rosie
 * Harvey
 * Spencer
 * Stephen
 * Porter
 * Ryan
 * Glynn
 * Diesel
 * Daisy
 * Mavis
 * 'Arry and Bert
 * Salty
 * Dart
 * Den
 * Sidney
 * Paxton
 * Philip
 * Skarloey
 * Luke
 * Victor
 * Millie
 * Rex
 * Bert
 * Annie and Clarabel
 * Henrietta
 * Judy and Jerome
 * Bertie
 * Bulgy
 * Terence
 * Kevin
 * Harold
 * Cranky
 * Reg
 * Big Mickey
 * Sir Topham Hatt
 * Lady Hatt
 * Stephen Hatt
 * Bridget Hatt
 * Dowager Hatt
 * Lord Callan
 * Farmer McColl
 * The Duke and Duchess of Boxford
 * The Mayor of Sodor
 * Sir Robert Norramby
 * Farmer Finney
 * The Grumpy Passenger
 * James' Driver
 * Bertie's Driver
 * Skiff (does not speak)
 * Rocky (does not speak)
 * Duck (cameo)
 * Bill and Ben (cameo)
 * Stanley (cameo)
 * Charlie (cameo)
 * Belle (cameo)
 * Caitlin (cameo)
 * Norman (cameo)
 * Flynn (cameo)
 * Stafford (cameo)
 * Winston (cameo)
 * Rheneas (cameo)
 * Sir Handel (cameo)
 * Peter Sam (cameo)
 * Mike (cameo)
 * Trevor (cameo)
 * Butch (cameo)
 * Jack (cameo)
 * Oliver the Excavator (cameo)
 * Max and Monty (cameo)
 * Owen (cameo)
 * Jem Cole (cameo)
 * The Thin Clergyman (cameo)
 * The Fat Clergyman (cameo)
 * Mr. Bubbles (cameo)
 * Captain Joe (cameo)

Characters Introduced

 * Hannah
 * Carly

UK

 * Mark Moraghan as the Narrator
 * John Hasler as Thomas and Rheneas
 * Keith Wickham as Edward, Henry, Gordon, Harvey, Glynn, Salty, Den, Stafford, Skarloey, Bert, Bertie, Harold, Sir Topham Hatt, Dowager Hatt, Farmer Finney, Lord Callan and the Grumpy Passenger
 * Nigel Pilkington as Percy and Trevor
 * Rob Rackstraw as James, Toby, Donald, Hugo and Big Mickey
 * Joe Mills as Douglas
 * Teresa Gallagher as Emily, Mavis, Annie, Clarabel, Judy, Stephen Hatt, Bridget Hatt and the Duchess of Boxford
 * Kerry Shale as Diesel, 'Arry and Kevin (Hasty Hannah only)
 * Nicola Stapleton as Rosie
 * Matt Wilkinson as Spencer, Cranky, Kevin, the Duke of Boxford and the Dock Manager
 * William Hope as Iron Bert and Farmer McColl
 * Bob Golding as Stephen and Sidney
 * Tracy-Ann Oberman as Daisy
 * Steven Kynman as Porter, Ryan, Peter Sam, Paxton and Dart
 * David Bedella as Victor and the Mayor of Sodor
 * Michael Legge as Luke
 * Mike Grady as Sir Robert Norramby
 * Miranda Raison as Millie
 * Tim Whitnall as Jerome and Reg
 * Maggie Ollerenshaw as Henrietta
 * Tom Stourton as Rex and Terence
 * Rasmus Hardiker as Philip
 * David Menkin as Porter (Cranky at the End of the Line only)
 * Lucy Montgomery as Hannah and Carly
 * Colin McFarlane as Bulgy and Bertie's driver
 * Ian McCue as the Blue Sea Serpent

USA

 * Mark Moraghan as the Narrator
 * Joseph May as Thomas
 * William Hope as Edward, Toby, Iron Bert, Farmer McColl, the Duke of Boxford and the Dock Manager
 * Kerry Shale as Henry, Gordon, Diesel, Harold and Kevin
 * Rob Rackstraw as James, Donald, Hugo and Big Mickey
 * Christopher Ragland as Percy and Trevor
 * Joe Mills as Douglas
 * Jules de Jongh as Emily and the Duchess of Boxford
 * Keith Wickham as Harvey, Glynn, Salty, Den, Stafford, Skarloey, Bert, Bertie, Sir Topham Hatt, Dowager Hatt, Lord Callan, Farmer Finney and the Grumpy Passenger
 * Teresa Gallagher as Mavis, Annie, Clarabel, Judy, Stephen Hatt and Bridget Hatt
 * Glenn Wrage as Spencer and Cranky
 * Nicola Stapleton as Rosie
 * Bob Golding as Stephen and Sidney
 * Tracy-Ann Oberman as Daisy
 * John Hasler as Rheneas
 * Steven Kynman as Ryan, Peter Sam, Paxton and Dart
 * Matt Wilkinson as Rusty
 * David Bedella as Victor and the Mayor of Sodor
 * Michael Legge as Luke
 * Mike Grady as Sir Robert Norramby
 * Miranda Raison as Millie
 * Tim Whitnall as Jerome and Reg
 * Maggie Ollerenshaw as Henrietta
 * Tom Stourton as Rex and Terence
 * David Menkin as Porter
 * Rasmus Hardiker as Philip
 * Lucy Montgomery as Hannah and Carly
 * Colin McFarlane as Bulgy
 * Ian McCue as the Blue Sea Serpent

Trivia

 * This season contains the 500th episode of the show, which is P.A. Problems.
 * This season marks the first of many things:
 * Ian McCue's first season as creative executive.
 * Micaela Winter's first season as producer for the series.
 * Sukhmani Kaur's first season as assistant production manager
 * Zahara Andrews' first season as production co-ordinator
 * The first season to be have episodes fully animated by Jam Filled.
 * This season marks Mark Moraghan's last season as narrator.
 * This is the shortest season to date, only being 18 episodes.

Source

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