Derek the Diesel and Friends (Sidney/Harold (Version 3) Version)

Cast

 * Sidney as Harold
 * Dodge as Hank
 * Den as BoCo
 * George as Derek
 * Dart as Bulgy
 * Diesel as Jeremy
 * Smudger as Salty
 * Old Stuck-Up (from RWS) as Bertie
 * Paxton as Bill
 * Norman as Ben
 * Splatter as Trevor
 * Percy as S.C.Ruffey
 * Arry as Donald
 * Bert as Douglas
 * Jeremy as Henry
 * Lady as Isobella
 * Elizabeth as Madge
 * Scruffey as Whiff
 * Annie as Rosie
 * Tiger Moth as Duck
 * Victor as Toby
 * Lorry 1 as Colin
 * Bill as Splatter
 * Ben as Dodge
 * D261 as Stanley
 * Butch as Jack
 * Bulgy as Alfie
 * Hank as Byron
 * Ferdinand as Ned
 * Winston as Kelly
 * Kevin as Patrick
 * Bertram as Nelson
 * Salty as Buster
 * Lorry 2 as Bash
 * Lorry 3 as Dash
 * Fred Pelhay (from RWS) as Puffa (from TUGS)
 * Daisy as Flora
 * Terence as Smudger
 * Oliver as Arry
 * Edward as Bert
 * The Barber as Sir Topham Hatt
 * The Stationmaster's Wife as Lady Hatt
 * Diesel 10 as Ferdinand
 * Ned as Oliver
 * Patrick as Rocky
 * Freddie as Gordon
 * Rheneas as James
 * Mavis as Caroline
 * Gordon as The Spiteful Brakevan
 * Big Mac (from TUGS) as Hiro
 * Flying Scotsman (from RWS) as D261
 * Lillie Lightship (from TUGS) as Elizabeth
 * Rocky as Hector
 * Stepney as Diesel
 * Mrs. Percival as Miss Jenny
 * Mr. Percival as The Foreman
 * Derek as Thomas
 * Molly as Emily
 * Toby as Diesel 10
 * Captain as Old Stuck-Up (from RWS)
 * The Spiteful Breakvan as Fergus
 * Stanley as George
 * Scruff as Skarloey
 * Whiff as Rheneas
 * Wilbert (from RWS) as Boomer (from TUGS)
 * Bash as Burke (from TUGS)
 * Dash as Blaire (from TUGS)
 * Nelson as Rusty
 * BoCo as Sir Handel
 * Trevor as Peter Sam
 * Caitlin as Daisy
 * Kelly as Duke
 * Toad as Duncan
 * Hector as Freddie
 * The Foreman as Mr. Percival
 * Miss Jenny as Mrs. Percival
 * Harvey as Den
 * Mighty as Dart
 * Mac as Norman
 * Fergus as Spencer
 * Alfie as Stepney
 * Jack as Billy
 * Frank (from RWS) as Sidney
 * Bear (from RWS) as Percy
 * Dutchess Of Hamilton (from RWS) as Belle
 * Iron Duke (from RWS) as Scruff
 * Millie as Molly
 * Stafford as Bear (from RWS)
 * Clarabel as Caitlin
 * Max as Mighty
 * Monty as Mac
 * Peter Sam as Terence
 * Emily as Isabel (from RWS)
 * Old Slow Coach as Dulcie (from RWS)
 * Cranky as Toad
 * Luke as Proteus
 * Sir Handel as Edward
 * Colin as Harvey
 * Neville as Paxton
 * Flora as Lady
 * Buster as Cranky
 * Duke as Butch
 * Charlie as Neville
 * Bulstrode as Hercules (from TUGS)
 * Henry as Lorry 1
 * James as Lorry 2
 * Douglas as Lorry 3
 * Donald as Charlie
 * Thomas as Dennis
 * Madge as Mavis
 * Skarloey as Bertram
 * Big City Engine (from RWS) as Murdoch
 * Harold as Neville
 * Duncan as Luke
 * Ten Cents (from TUGS) as Porter
 * Proteus as Luke
 * Rusty as Stafford
 * Merrick as Stephen
 * Owen as Connor
 * Flynn as Winston
 * Stephen as Merrick
 * Belle as Millie
 * Neil (from RWS) as Owen
 * Isobella as old Slow Coach

Season 1

 * Derek and Freddie/Derek Gets Tricked
 * Sir Handel and Freddie/Sir Handel Helps Out
 * The Sad Story of Jeremy/Come Out, Jeremy!
 * Sir Handel, Freddie and Jeremy/Jeremy to the Rescue
 * Derek's Train/A Big Day for Derek
 * Derek and the Breakdown Train/Derek Saves the Day
 * Rheneas and the Coaches/Rheneas Learns a Lesson
 * Troublesome Trucks/Foolish Freight Cars
 * Rheneas and the Express/A Proud Day for Rheneas
 * Derek and the Guard/Derek and the Conductor
 * Derek Goes Fishing
 * Derek, Peter Samand the Snow/Peter Sam the Narrow Gauge Engine
 * Derek and Old Stuck-Up/Derek and Old Stuck-Up's Great Race
 * Tenders and Turntables
 * Trouble in the Sheds
 * Bear Runs Away
 * Fuel/Jeremy's Special Fuel
 * The Flying Kipper
 * Whistles and Sneezes
 * Victor and the Stout Gentleman/Victor the Steamworks Engine
 * Derek in Trouble/Derek Breaks the Rules
 * Dirty Objects/Rheneas in a Mess
 * Off the Rails/Freddie Takes a Dip
 * Down the Mine
 * Derek's Christmas Party

Season 2

 * Derek, Bear and the Coal/Double Trouble
 * Cows/A Cow on the Line
 * Old Stuck-Up's Chase
 * Saved from Scrap
 * Old Iron
 * Derek and Splatter/A New Friend for Derek
 * Bear and the Signal
 * Tiger Moth Takes Charge
 * Bear and Sidney/Bear Proves a Point
 * The Runaway
 * Bear Takes The Plunge
 * Pop Goes the Stepney
 * Dirty Work/Stepney's Devious Deed
 * A Close Shave/A Close Shave for Tiger Moth
 * Better Late Than Never
 * Gordon/Arry and Bert
 * The Deputation
 * Derek Comes to Breakfast
 * Caitlin
 * Bear's Predicament
 * The Diseasel
 * Wrong Road
 * Sir Handel's Exploit
 * Ghost Train/Bear's Ghostly Trick
 * Wooly Bear
 * Derek and the Missing Christmas Tree

Season 3

 * A Scarf for Bear
 * Bear's Promise
 * Time for Trouble
 * Freddie and the Famous Visitor
 * Arry's Duck
 * Derek Gets Bumped
 * Derek, Bear and the Dragon
 * Stepney Does It Again
 * Jeremy's Forest
 * The Trouble with Mud
 * No Joke for Rheneas
 * Derek, Bear and the Post Train/Derek, Bear and the Mail Train
 * Trust Derek
 * Madge
 * Victor's Tightrope
 * Sir Handel, Splatter and the Really Useful Party
 * Buzz Buzz/Rheneas Goes Buzz Buzz
 * All at Sea
 * One Good Turn
 * Little Engines
 * Escape!
 * Ned Owns Up
 * Dart
 * Heroes
 * Butch Jumps In
 * A Friend In Need
 * Bear, Rheneas and the Fruitful Day
 * Derek and Bear's Christmas Adventure/Derek and Bear's Mountain Adventure

Season 4

 * Granpuff
 * Sleeping Beauty
 * Bulldog
 * You Can't Win
 * Four Little Machines
 * A Bad Day for BoCo
 * Trevor and The Refreshment Lady
 * Trucks/Nelson Helps Trevor
 * Home At Last
 * Rock'N'Roll
 * Special Funnel
 * Silver Engine
 * Passenger and Poolish
 * Gallant Old Engine
 * Nelson to The Rescue
 * Derek and Alfie
 * Train Stops Play
 * Bowled Out
 * Jeremy and The Elephant
 * Cranky Stands By
 * Bull's Eyes
 * Derek and The Special Letter
 * Paint Pots and Queens/Derek Meets The Queen
 * Fish
 * Special Attraction
 * Mind That Bike

Season 5

 * Buster Bugs
 * Horrid Engine
 * A Better View for Freddie
 * The Stationmaster's Wfie's Birthday Party
 * Rheneas and the Trouble with Trees
 * Freddie and the Gremlin
 * Bye Stanley
 * Baa!
 * Put Upon Bear
 * Victor and the Flood
 * Haunted Jeremy
 * Double Teething Troubles
 * Alfie Gets Lost
 * Victor's Discovery
 * Something in the Air
 * Derek, Bill and Daisy
 * Derek and the Rumors
 * James' Find
 * Happy Ever After
 * Duke of Boxford's Holiday
 * A Surprise of Bill/A Big Surprise for Bill
 * Make Someone Happy
 * Busy Going Backwards
 * Bulgy Gets Spooked
 * Snow
 * Salty and the Big City Engine