"I'm not good at doing what I'm told. I can't sit still, and I can't remember anything, like numbers, or letters, or my hat." ― Jack Russell[source]
Jack Russell is a secondary character who appears in Bluey. The new kid at Glasshouse Primary School, he is the best friend of Rusty, has friendships with Mackenzie, Bluey, and Coco - and he also has a younger sister.
Bluey.tv Description
Jack Russell is, unsurprisingly, a Jack Russell!
Jack is the new student in Calypso’s class and fits in perfectly with Bluey and the other kids. He lives with his mum and dad and has a younger sister, Lulu.
Jack does his best to be a good boy, but sometimes he finds it difficult to sit still or remember to do the things he’s told by his parents and teachers.
Jack is very good at imaginative play and his best friend Rusty loves to play Army, a game that helps Jack focus and remember. His favourite treat is condensed milk.
"Jack Russell is a lively Jack Russell terrier. His best friend is Rusty."
Biography

Jack doing what he loves, which includes watching over the field.
Jack is the son of his parents and the older brother of Lulu. The best friend of Rusty,[1], he is also friends with several other students at Glasshouse Primary School, including Bluey, Coco[2] and Mackenzie.[3]

We're sendin', yeah We're sendin' Jack to school.
Jack attended a different school prior to enrolling at Glasshouse and felt that the move was due to his own shortcomings rather than anything related to his old school. His dad brought him to Glasshouse for his first day and introduced him to his teacher, Calypso, who suggested that Jack play with a Red Kelpie named Rusty. Upon learning that Rusty was going to play a game of army, and hearing what it involved, Jack initially believed he wouldn't be good at it. However, Rusty soon determined that Jack could perform to his own satisfaction, and to Jack's delight he was invited to participate. Jack greatly enjoyed the game and his new friendship, finding that there were aspects of pretending to be a soldier that he liked.

Jack has befriended Rusty.
Bonds of people is the true power.
With Rusty's confidence in him, Jack was able to do things he had struggled to do previously. He also had the chance to show off his prowess at running, something he already knew he could do quite well. Later, he confided in Rusty regarding his past difficulties, and Rusty listened attentively before once again complimenting Jack's efforts in the game. At the end of the game, Rusty promoted "Recruit" Russell to "Private" Russell and gifted him some condensed milk he had received from his father, a real-life soldier. Jack would later recount these experiences to his mum, much to her amusement and delight.[1]

It's time to evacuate!
During another game of army, Rusty and an "injured" Jack boarded Bluey's tree stump helicopter. Due to Jack having an injured leg in the game, he had to be carried on and off the helicopter by Rusty.[4] The two later attended a fair held at their school and got their faces painted with camo patterns.[5]

Jack has just been thrown into role he's unfamiliar with.
One day at school, Jack had joined Rusty, Coco, and Bluey in pretending to sail to Antarctica. As they were preparing to sail back to Australia, Rusty's Mum arrived to pick him up. To Jack's surprise and discomfort, Rusty-who up to this point had been acting as captain-appointed him as the new leader of the play expedition. Coco and Bluey were eventually picked up as well, leaving Jack to continue on playing by himself. Eventually, his dad and Lulu, who had been on an adventure of their own, arrived to pick him up.[2]

Not this again!
Another day, Jack and Rusty were joined by Mackenzie in playing a game of space exploration, with Jack acting as both the navigator and the voice of their "computer" Dude-a-tron. During the course of the game, Mackenzie began behaving oddly, and Jack later questioned him. Eventually, he and Rusty learned that Mackenzie, for reasons even he couldn't explain, wanted to pretend that they left him behind in the game. Neither of them wanted to go along with this, but when Mackenzie insisted on going off on his own, Rusty surprised Jack by allowing him to do so.
However, Jack's promptings later led Rusty to go after Mackenzie, just in time to "save" him from some "aliens"-in reality Bluey, Chloe, and Indy. Jack pulled on Rusty's tether, helping him to pull Mackenzie out of the aliens' grasp and back through the "black hole" he had traveled through. The experience helped Mackenzie overcome what he had been feeling, and the three resumed their game's original goal of traveling to Mars.[3]

Jack, having kept Rusty on his toes.
Jack and Rusty's friendship would eventually lead to Rusty riding home with Jack during a period when Rusty's dad was deployed in his army service. The two friends would then spend time practicing cricket, of which Rusty was a huge fan, in Jack's rough front yard. Initially, Rusty struggled to bat on this terrain, and Jack was able to bowl quite successfully against him. However, over the course of a year or so, Rusty grew to the point where he could hit Jack's bowls, much to the pleasure of both of them.[6]

The news that would rock Jack's world.
On another occasion, Jack was at school when Bluey announced that her family would be moving away, and that she didn't expect to see any of them again. Jack and the others all gathered around Bluey and howled in sadness, prompting Calypso to read them a story. Part of the story involved a boy not having to serve in an army due to an injury, though Jack-no doubt due to his own enjoyment of playing army with Rusty-questioned why the boy wouldn't have wanted to be a soldier. Rusty was soon inspired to initiate a game of army, which Jack eagerly joined in on.[7]
Appearance

Jack walks over to the spaceship with his friends.
Jack is a Jack Russell Terrier[8] with brown and white fur.
Specifically, his feet, legs, hands, arms, tail tip, tummy, head and muzzle are all white in colouration, his ears, upper head spots, and outer torso spot are brown, and his tail stem, outer torso spot and eyebrows are dark brown. His muzzle appears rounded. He has a tuft of hair on his head. He also has a grey nose and is noticeably shorter and stubbier than his peers (if you put him side-by-side with, say, Mackenzie; in "Space", in order for Mackenzie to reach him, he has to be lifted up).
Personality

Rusty's had a big impact on Jack, who has come out of his shell.
Jack is an approachable and sensitive kid who loves to play with his friends. He has struggled with certain things in the past, such as sitting still or remembering things. This left Jack with feelings of self-doubt and that he was, in some way, not how he should be. However, befriending Rusty has helped him to discover new confidence in himself. He also likes playing cricket or at least has an interest in it[9].
Jack in enthusiastic about space facts, and rather insistent upon accuracy, such as disputing Rusty's claims about aliens.
Appearances
- S02E16 - Army (debut)
- S02E25 - Helicopter
- S02E47 - Ice Cream (cameo)
- S03E09 - Curry Quest (cameo)
- S03E15 - Explorers
- S03E34 - Space
- S03E44 - Wild Girls (cameo)
- S03E45 - TV Shop (cameo)
- S03E47 - Cricket
- S03E49 - The Sign
Trivia
General trivia
- He loves condensed milk.
- He may be the first known neurodivergent character in Bluey (presumably having ADHD), however this yet to be confirmed.
- He is one of the few known characters with hair in the series, including Dusty, Indy, her mum, Radley, his wife Frisky, his sister Lulu, Digger, and Rusty's mum.
- Unlike the other listed examples, Jack and Lulu are the only ones out of this list that do not have human-like hair.
- In Explorers, it is revealed that Jack and his family are from Victoria. This can be shown on the number plate shown on his family's car.
- The Disney+ Closed Captions for Army accidentally called Jack "Chuck" in the beginning of the episode. The erroneous line is "Hey, Chuck, ooh!", by his mum.