Cast[]
- Izzy Gomez as Thomas
- Red Fin (SL Fire Tug) as Edward
- Igloo (from Theodore Tugboat) as Henry
- SL Fultan Ferry as Gordon
- George (from Theodore Tugboat) as James
- Lord Stinker as Percy
- Northumberland (from Theodore Tugboat) as Toby
- Foduck (from Theodore Tugboat) as Duck
- Sea Rogue as Donald
- Sea Rogue's Uncle as Douglas
- Steamer (SL Johnny Cuba) as Oliver
- Bulgy (from TTTE) as Diesel
- The Green-Eyed Pirate #1 as Bill
- The Green-Eyed Pirate #2 as Ben
- Fundy (from Theodore Tugboat) as BoCo
- Gloria Cornwallis (from Theodore Tugboat) as Daisy
- Frank as Stepney
- Sigrid (from Theodore Tugboat) as Emily
- Stanley/Chooch (SL Puffa) as Bertie
- The Coast Guard as Salty
- Zuke as Harvey
- Jasper the Junk Dock (from Theodore Tugboat) as Arry
- Bobby Barge (from Theodore Tugboat) as Bert
- Baddeck (from Theodore Tugboat) as Fergus
- Dennis (from TTTE) as Skarloey
- Whiff (from TTTE) as Rheneas
- Connor (from TTTE) as Sir Handel
- Ferdinand (from TTTE) as Peter Sam
- Duke (from TTTE) as Rusty
- Sir Handel (from TTTE) as Duncan
- Flynn (from TTTE) as Duke
- Peter Sam (from TTTE) as Freddie
- Stepney and Rusty (from TTTE) as Mighty Mac
- Seabright (from Theodore Tugboat) as Arthur
- Emily (from Theodore Tugboat) as Lady
- The Rock Brother 1 (from Theodore Tugboat) as Diesel 10
- The Rock Brother 2 (from Theodore Tugboat) as Splatter
- The Rock Brother 3 (from Theodore Tugboat) as Dodge