"Sometimes I wish i were brave...like you." - DJ to Xion.
He looks like his mother. He is very shy and timid, but he can be brave at times too. Sometimes, DJ can also be sarcastic like his father and mother.
- His sister Tammy and his girlfriend Snowflake
- Being kind and helpful to others
- Being brave
- Chocolate (specifically Willy Wonka's)
- The color green
- Discord (due to being advised by Fluttershy and Beetles to befriend him)
- Playing with and watching over Lily Yuki and Flurry Heart
- Captain America
- Scarlet Witch
- Quicksilver (Speed rival)
- His best friend Kion
- Being a brother figure to Lily Yuki
- Prize grabbing machines
- Golden Egg-wiches
- Count Chocula cereal
- His parents Diego and Shira
- Treasure hunting with Tammy and Snowflake
- Tea (due to the tea parties he has with Fluttershy, Discord, Beetles and Snowflake)
- Being scared
- Xion, Fluttershy or any other members of his family being sad
- Being wet
- Being alone
- Being called a coward
- Being called "kitty" (but allows Lily to call him that)
- Baloney the Dinosaur
- Mr. Director
- Spiders (as of Jeffrey, Jaden & Friends' Storm Adventures of Harry Potter and the Chamber of Secrets)
- Ebony Maw
- Elmyra Duff
- Lily Yuki in danger
- Desperate survey ladies
- Diego Jr. and his twin sister Tammy will be born in the chronicles episodes Security for Sabretooths Part 1 and Security for Sabertooths Part 2. DJ was born first.
- They look up to Xion as a older sister.
- DJ's favorite color is green.
- He and Tammy never argue, though they do have some disagreements.
- DJ views Xion and Fluttershy as his idols. He also gets along with Fluttershy very well due to their shyness.
- DJ also is very kind, friendly, and protective to Lily. He acts as a responsible older brother to her and Princess Flurry Heart.
- In The Million Dreams Girl, Diego Jr's courage will be tested.
- DJ's courage will be ultimately tested in Jeffrey, Jaden & Friends' Storm Adventures of The Mummy Returns.
- In Power Paws, Tammy and DJ will get super powers. His powers will be super speed, telekinesis, flight and a super roar. DJ can lift people with his telekinesis, but it requires more concentration and weakens him when he does it. He'll soon gain other powers.
- DJ and Tammy will be the main protagonists of Tammy, DJ and The Adventures of Elmo in Grouchland.
- In Jeffrey, Jaden & Friends' Storm Adventures of Muppets Most Wanted, It's revealed that DJ is very talented at singing.
- DJ is a fan of Daring Do books.
- Like most cats, DJ is not always fond of getting bathes (mostly because he hates getting wet).
- DJ is very fond of chocolate. He also knows that Tammy doesn't like it and respects this.
- DJ becomes a member of the Green Lantern Corp in DJ the Green Lantern.
- DJ eventually falls in love in the series with an albino saber-tooth named Snowflake. Eventually, he confesses his love for her and they start a relationship.
- DJ is not allowed to have caffeine, because when he has some, DJ becomes an unstoppable force due to his super speed.
- In Jeffrey, Jaden & Friends' Storm Adventures of Avengers: Age of Ultron, DJ develops a rivalry with Quicksilver. After his death, DJ starts honoring Quicksilver's memory.
- In Jeffrey, Jaden & Friends' Storm Adventures of The Lion Guard: Return of the Roar, DJ becomes best friends with Kion.
- Courtney stands up for DJ and Tammy by getting into constant dog fights with Fang.
- DJ is often called the Simba of the Justice Guardians.
- SPOILER ALERT: After the events of Jeffrey, Jaden, Hiccup & Friends' Storm Adventures of Avengers: Endgame, both DJ and Sam Wilson become the new Captain America after Steve Rogers retires and passes the shield to them.
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