Jacob is a human character.


Jacob first appeared in the special Rosie, Caroline, and the Christmas Party, which takes place between Saving Benjamin and Rosie, Jacob, Sierra, and the Troublesome Trucks. In this special, he, along with Sierra, Cassie, and Caroline, came to Sodor for the first time to visit Kira and her family. Sometime between the special and Rosie, Jacob, Sierra, and the Troublesome Trucks, Jacob and Sierra decided to stay on Sodor.

Later in the first season, he convinced Sir Topham Hatt to restore Glynn and he threw surprise birthday parties for Cassie and Caroline.

In the second season, Jacob threw a surprise birthday party for Sierra and became friends with the Quadruplets.

In the ninth season, Jacob and Sierra were left in charge of the North Western Railway while Richard Hatt's family went on holiday, much to the dismay of Marie and Rose.

In the eleventh season, Jacob was the pit reporter for a Robot Wars live event. Later on in that season, he and Jackson went to America to be the pit reporters for Battlebots.

In The Search for the Missing Friends, Jacob and Thomas traveled around the world.

In the twelfth season, Jacob and Jackson worked with Rebecca for the first time. Later in that season, Jacob revealed that he also has dreams of being a Broadway actor.


Jacob is a kind, quiet boy. He is smart and a bit nerdy, but is also very boyish and loves to get his hands dirty. He is also very friendly, dramatic, and stubborn. He also gets very angry when someone else tells him he can't do something. He is not without insecurities, however, and often gets himself down when he thinks he can't do something. He also has a tendency to take on more things than he can handle, such as when he and Connor tried to do Sierra and Kira's work in addition to their own.


Jacob always wears green. In the autumn and spring, he can usually be found wearing a green hoodie with blue jeans. In the summer, he can usually be found wearing a green t-shirt and blue shorts. In the winter, he can usually be found wearing a green coat with blue jeans.


"Who was that?"
"That's Glynn. He was the original engine that ran this branch line.
— Jacob and Thomas about Glynn, Back In Service, season 1

"Well since we are going to take these passengers to Knapford,when we get there we are going to ask Sir Topham Hatt if we can cut away the weeds from around Glynn and take him to the Steamworks for Victor to fix him so he can run again."
— Jacob, Back In Service, season 1

"What's wrong guys?"
"Oh, nothing. We're just a little homesick."
"But, Ms. Sierra, how could you be sick of a wonderful place like Sodor?"
"No, Toad homesick means that we miss our home, not that we're sick of yours."
"Oh, sorry, Mr. Jacob."
"That's alright, Toad. After, all you gave us a good laugh.
Duck, Sierra, Jacob, and Toad, Homesick, season 1

"I don't think it's very wise of Mr. Hatt to leave those two immature children in charge of us."
"They're not children anymore, Marie. They're 16 now."
"And anyway, they've been on Sodor, taking care of themselves for like 3 years now. I think if they can take care of themselves for that long, then they can certainly take care of all of us for a week."
"They're still young, and they surely aren't responsible enough to take care of a railway as big as this one."
"I hate to admit it but, Marie’s right. This railway should not be left in the hand of two incompetent and irresponsible children.
— Marie, Rosie, Madison, and Rose about Jacob and Sierra, The Substitute Controller, Season 9

"I can not believe those two are rude enough to say those things about Jacob and Sierra."
"I know! It's so inconsiderate!"
"It is indeed! Someone should say something. I think it should be Gor-"
"I'll do it. Jacob is my best friend, after all.
— Edward, Henry, James, and Duck upset with Marie and Rose, The Substitute Controller, Season 9

"I wish I could travel the world."
— Jacob, The Search for the Missing Friends

"I'll never get to be a Broadway actor!"
— Jacob thinking he won't be able to follow his dreams, Dreams, Season 12


  • Jacob is one of only two characters to be the main character in at least one episode in every season, with the other being Sierra.
  • Jacobacranmer, Jacob's creator, based the character on himself.