Bubble Guppies/Devious Diesel Gets Grounded

Cast
And more
 * Mr. Grumpfish as Devious Diesel (voiced by Wiseguy/Simon) (both villains and troublemakers)
 * Mr. Grouper as Sir Topham Hatt (voiced by Wiseguy/Alan)
 * Gil as Thomas The Tank Engine (voiced by Brian/Paul) (Both Blue)
 * Goby as Edward The Blue Engine (voiced by David) (Both Blue as Gil and Thomas)
 * Deema as Emily The Green Engine (voiced by Salli) (Both Ex-Girlfriends as Gil and Thomas)
 * Molly as Rosie The Pink Engine (voiced by Julie) (Both Pink and girlfriends as Gil and Thomas)