Series 23

The twenty-third season of the Television series will possibly start airing sometime in 2019.

Characters
Emily and Sir Topham Hatt are also likely to appear.
 * Thomas
 * Edward
 * Henry
 * Gordon
 * James
 * Percy
 * Toby

UK and AUS

 * Mark Moraghan as the narrator
 * John Hasler as Thomas
 * Keith Wickham as Edward, Henry, Gordon, James and Sir Topham Hatt
 * Nigel Pilkington as Percy
 * Rob Rackstraw as Toby
 * Teresa Gallagher as Emily

US

 * Mark Moraghan as the narrator
 * Joseph May as Thomas
 * William Hope as Edward and Toby
 * Kerry Shale as Henry and Gordon
 * Rob Rackstraw as James
 * Christopher Ragland as Percy
 * Jules de Jongh as Emily
 * Keith Wickham as Sir Topham Hatt

Source

 * https://twitter.com/FlattenedFunnel/status/903243950412013568