Simba (voiced by Jonathan Taylor Thomas as a cub and Matthew Broderick as an adult) is a king of the pride lands and Jaden's new friend from Jaden meets The Lion King. He knew Simba as a cub, and was by his side to help him let go of his past save the pride lands from his Uncle Scar to claim his rightful throne. Simba is married to Nala and has a daughter called Kiara.
- Simba will guest star along with Timon and Pumbaa in Jaden's Adventures of Don't Eat the Pictures.
- Simba is one of the many imprisoned animals in the Juniper Lee's Adventures Series episode Animal Alcatraz.
- Simba started his own adventures in Timon and Pumbaa's Adventures of The Jungle Book, becoming the leader of the Jungle Adventure Crew, which was still small at this point.
- Simba is a close friend to Ed Edd and Eddy
- Simba will also guest star along with Nala, Timon, Pumbaa, King Julien, Maurice, and Mort in Jaden's Adventures of Alice in Wonderland (2010 version).
- Simba will guest star in Pooh's And Jaden's Adventures of ChalkZone The Big Blow Up.
- Jeffrey and his friends will meet Simba in Jeffrey & Friends' Adventures of The Lion King. He'll reunite with them in Jeffrey & Friends' Adventures of The Lion King 2: Simba's Pride. When Simba sends Kovu into exile, Jeffrey's trust in Simba will be shaken.
- It is revealed in Benny, Leo and Johnny's Adventures of The Lion King that Simba's brother is Johnny the Lion.
- Simba will guest star in Wedding Duels.
- Simba will attend Jeffrey and Aqua's wedding in Key of Flaming Union.
- Simba will guest star again in Jeffrey, Jaden & Friends' Storm Adventures of Alice Through the Looking Glass.
- Simba will meet Darkblade in Darkblade's Adventures of The Lion King.