Percy/Douglas

Cast

 * Percy as Douglas
 * Hiro as Harold (Hiro and Harold are both start with H)
 * Gordon as Byron (Gordon and Byron are both end with on)
 * BoCo as Jeremy
 * Duncan as Tiger Moth (Duncan and Tiger Moth are both yellow)
 * Billy as Bluebell (from RWS) (Billy and Bluebell are both start with B)
 * James as Stepney
 * Thomas as Neville
 * Bill as Oliver
 * Ben as Thomas
 * Stepney as Donald
 * Diesel 10 as Spamcan (from RWS) (Diesel 10 and Spamcan are both big diesel engines)
 * Bash as Jack
 * Dash as Alfie
 * Ferdinand as Kelly (Ferdinand and Kelly are both blue)
 * Elizabeth as Elizabeth
 * Molly as Annie
 * Oliver as Toby
 * Rosie as Henrietta
 * Harold as Luke
 * Freddie as Stafford
 * Colin as Kevin (Colin and Kevin are both end with in)
 * Norman as Splatter
 * Paxton as Dodge (Paxton and Dodge are both green)
 * Rheneas as Toad
 * Charlie as Bash
 * Fergus as Dash
 * Neville as Patrick
 * Whiff as Percy (Whiff and Percy are both green tank engines)
 * Arthur as Scruff
 * Dennis as Bulstrode
 * The Old Engine (from RWS) as Ferdinand
 * Salty as Whiff
 * Den as Big Mac (from TUGS)
 * Dart as Warrior (from TUGS)
 * Rusty as Nelson
 * Oliva as Old Slow Coach
 * Diesel as Diesel
 * Arry as Arry
 * Bert as Bert
 * Sir Topham Hatt as Big Bird (from Sesame Street)
 * Lady Hatt as Zoe (from Sesame Street)
 * Jack as Captain
 * Toby as Victor
 * Kevin as Fergus
 * Victor as Ned
 * George as Diesel 10
 * Daisy as Daisy
 * Hector as Max
 * Hank as Flying Scotsman (from RWS)
 * Mallard (from RWS) as Big City Engine (from RWS)
 * Henrietta as Clarabel
 * Cranky as Big Mickey (from TUGS)
 * Smudger as D261 (Smudger and D261 are both green)
 * Mr. Percival as Stan Marsh (from South Park)
 * Mrs. Percival as Wendy Testaburger (from South Park)
 * Jeremy as Edward
 * Lady as Millie
 * Troublesome Trucks as Themselves
 * Scruffey as Monty (Scruffey and Monty are both end with Y)
 * D261 as Duncan (D261 and Duncan are both start with D)
 * Bertie as Gordon
 * Mavis as Belle
 * Luke as Butch
 * Annie as Mavis
 * Clarabel as Caroline (Clarabel and Caroline are both start with C)
 * Culdee (from RWS) as Bill
 * Wilfred (from RWS) as Ben
 * Bear (from RWS) as Arthur (Bear and Arthur are both end with r)
 * Albert (from RWS) as Paxton
 * Splatter as George
 * Dodge as Smudger (Dodge and Smudger are both green)
 * Toby's Brother (from RWS) as BoCo
 * Sir Handel as Henry (Sir Handel and Henry are both Number 3)
 * Peter Sam as Derek (Peter Sam and Derek are both green)
 * Catherine (from RWS) as Caitlin (Catherine and Caitlin are both start with Ca)
 * Spencer as Sir Handel
 * Stanley as Thumper
 * The Foreman as Marge (from The Simpsons)
 * Miss Jenny as Homer (from The Simpsons)
 * Duck as Freddie
 * Ivo Hugh (from RWS) as Rusty
 * Frank (from RWS) as Billy
 * Rocky as Colin
 * Lord Harry (from RWS) as Norman
 * Emily as Victoria (from RWS)
 * Murdoch as Green Arrow (from RWS)
 * Harvey as Rocky
 * Derek as Trevor (Derek and Trevor are both green)
 * Toad as Harvey
 * Edward as Flynn
 * Skarloey as Puffa (from TUGS)
 * Spamcan (from RWS) as Scruffey (Spamcan and Scruffey are both start with S)
 * Bulstrode as Oliver (from Theodore Tugboat)
 * Flora as Catherine (from RWS)
 * Scruff as Dennis
 * Byron as Duck
 * Duchess of Hamilton (from RWS) as Molly
 * Green Arrow (from RWS) as Hiro
 * Isabel (from RWS) as Lady
 * Donald as Skarloey
 * Douglas as Rheneas
 * Henry as Duke
 * Trevor as Terence (Trevor and Terence are both start with T)
 * Lorry 1 as Den
 * Lorry 2 as Dart
 * Lorry 3 as Sidney
 * Mighty as Lorry 1
 * Mac as Lorry 2
 * Kelly as Butch
 * Proteus as Pete (from The Little Engine That Could) (Proteus and Pete are both start with P)
 * Bertram as Bear (from RWS) (Bertram and Bear are both start with Be)
 * Bert (from RWS) as Bertie (Bert and Bertie are both start with B)
 * Owen as Owen (from Theodore Tugboat)
 * Merrick as Clayton (from Theodore Tugboat)
 * Stephen as Ten Cents (from TUGS)
 * Terence as Salty
 * Winston as Iron Duke (from RWS)
 * City of Truro as City of Truo (from RWS)
 * Millie as Isobella
 * Caitlin as Rosie
 * Rex (from RWS) as Peter Sam (Rex and Peter Sam are both green)

Parodies

 * Stephen/TUGS (Percy/Douglas version)
 * Sir Topham Hatt/Sesame Street (Percy/Douglas version)