Duck/Oliver

Cast

 * Duck as Oliver (Duck and Oliver are both Green)
 * Green Arrow (from RWS) as Stanley
 * Flying Scotsman (from RWS) as Sir Handel
 * The Big City Engine (from RWS) as Diesel 10 (The Big City Engine and Diesel 10 are both Big and Strong)
 * Mallard (from RWS) as Diesel
 * Oliver as Whiff (Oliver and Whiff are both Green)
 * City of Truo as Rusty
 * Thomas as Dennis
 * Henry as Gordon (Henry and Gordon are both Tender Engines)
 * Gordon as Henry (Gordon and Henry are both Tender Engines)
 * Percy as Billy (Percy and Billy both end with Y)
 * George as James
 * Skarloey as Bash
 * Rheneas as Dash
 * Duke as Thomas
 * Mavis as Caroline
 * Daisy as Rosie
 * Toby as Fergus
 * Lady as Belle
 * Ferdinand as Trevor
 * Flynn as Freddie (Flynn and Freddie both start with F)
 * Max as Splatter
 * Monty as Dodge
 * Edward as Stepney
 * Culdee (from RWS) as Ferdinand
 * Wilfred (from RWS) as Hector
 * Shany Dooniey (from RWS) as D261
 * Ernest (from RWS) as Jock (from RWS)
 * Bert (from RWS) as Rex (from RWS)
 * Lord Harry (from RWS) as Smudger
 * Proteus as Hiro
 * Jock (from RWS) as Harvey
 * Blister | and Blister || (from RWS) as Donald and Douglas
 * Stepney as Derek
 * Emily as Molly (emily and Molly both start with M)
 * Diesel as Spencer
 * Arry as Max
 * Bert as Monty
 * Jem Cole as Mr. Percival
 * The Refreshment Lady as Mrs. Percival
 * Byron as Peter Sam
 * Fergus as Bertie
 * Alfie as Neville
 * Derek as Arthur
 * Spencer as Spamcam (from RWS) (Spencer and Spamcam both start with S)
 * Isobella as Isobella
 * Diesel as Bulstrode