|Jake the Dog|
|Name||Jake the Dog|
|Vehicles and/or Gadgets||BMO|
|Residence||Finn and Jake's Treehouse, Ooo|
Jake the magical Dog is the adopted brother to Finn the Human who goes on adventures with him around the Land of Ooo. He's also married to Lady Rainicorn and has several kids with her. Jake has the ability to stretch his body limbs into an immense length. He also can grow into a giant, and shrink.
- Slurp Access
- Rope Swings
Note: Jake will change his shape, to gain new abilities.
- John DiMaggio reprises his voice as Jake for this game and the Adventure Time TV show.
- While Jake is in his Jake-Suit form, all characters can jump into him as a reference to the real-life episodes "Jake Suit" and "The Silent King". This was confirmed during the LEGO Dimensions segment on IGN Live SDCC.
- So far, Jake is the only playable character who can access the Gyrosphere Switches Ability as Zorb Jake, as the Ability itself is an exclusive ability found in the Gyrosphere and its alternate builds.
- One of his idle animations has Jake playing his viola.
- He and Finn are currently the only characters to open up a selection wheel and gain new abilities.
- This is a mechanic reused from LEGO Batman 3: Beyond Gotham.
- They are a lot of references whenever Jake reacts amongst other things:
- Jake's quote towards B.A. Baracus is a play of one of his actor, Mr. T's famous catchphrases, "I pity the fool!"
- Jake's quote towards Slimer is a reference to Slime Princess, a princess who shares similarities to Slimer.
- Jake's quote towards Unikitty is a reference to the fact that she and Lady Rainicorn are unicorns.
- Jake's toy tag has a joystick and includes the floor from his treehouse.
- If the player has Jake on the Toy Pad whilst playing the Adventure Time Level, new dialogue will be unlocked, as the playable Jake will be referred to as "Future Jake".
- Due to his transformations, he has the most abilities out of any single playable character with a total of 16 abilities, he also shares this record with Newt Scamander and Chase McCain.
- His reference to the Sonic Speedster could be because Sonic the Hedgehog has ridden it.
- Jake is the only character that can enter Scale tunnels without the use of the Scale Keystone.
- Main article: Jake/Gallery