Despite his wise attitude, he can also can be clueless with some things, as he shows by taking the wrong path to Sir Ector's castle.

After a heated argument, Merlin, in a fit of frustration, decides to leave and abandon his role as Wart's tutor, and time travels to the 20th century of Bermuda.

Overwhelmed by the pressures of kingship, Arthur desperately calls out to Merlin, who returns after taking a vacation to the 20th century.

Like other Disney animated characters, Merlin (voiced by Hamilton Camp) made recurring cameo appearances in the television series House of Mouse (2001–2003) as a guest in the titular club.

[14] He first appears in Kingdom Hearts (2002) residing in a hidden underground house in Traverse Town, where he helps Sora train in his magical abilities.

Later, like the other characters present in Hollow Bastion, he ends up remembering that long ago that world was known as Radiant Garden.

[17][14] In the prequel Kingdom Hearts Birth by Sleep (2010), a decade before the events of the first Kingdom Hearts, he resides in Radiant Garden, where he gave Terra, Ventus, and Aqua permission to view the Hundred Acre Wood book, granting them access to the Hundred Acre Wood Command Board.

[18][14] In Kingdom Hearts III (2019), he had sent Kairi and Lea to a realm where time is stilled, allowing them to train at their own pace.

Sora, Donald, and Goofy meet Merlin in Twilight Town, where the wizard reveals to have the Hundred Acre Wood storybook with him.

[27] Merlin is one of the villagers that appear in Disney Dreamlight Valley (2023), where he guides the player since the beginning of the game, and has a recurring role in quests in which he is involved for the progress of the story.

Merlin later appears in a minor role in the fourth book of the series, Escape from the Isle of the Lost (2019), as the representative of Camelot in a council known as National Association of Far Far Away.

[29] After the film's protagonists Red and Chloe travel back in time and meet him, they pretend to be exchange students at his academy, so Merlin accepts them into the school and takes them to the alchemy class where he teaches.

The next night, after being warned by Archimedes that there are intruders in his office, he finds the group of young villains led by Uliana petrified by one of his security enchantments, so he tells them that as punishment they will remain that way for a long time.

A live-action appearance of Merlin (portrayed by Hamilton Camp) is present in the Disney Sing-Along Songs installment Happy Haunting – Party at Disneyland!

At the beginning of the episode "The Dark Swan" (2015) from the television series Once Upon a Time, Merlin can be seen on the cinema screen where The Sword in the Stone is being shown.

Later, Merlin appears as part of the group photo along with the rest of characters from Walt Disney Animation Studios.