Young Sheldon Season 7 might be coming to an end next week, but fans have only just noticed that a frequent guest star is already a TV icon.

AsYoung Sheldon Season 7draws the prequel to a close for good, many fan-favorite characters are making their return to Medford for one final goodbye. However, as Sheldon says goodbye to Nathan from the comic book store, fans have only just worked out who he actually is — Steve from hit kid’s TV show Blue’s Clues.

Fictional Steve — whose real name is Steve Burns — starred in Blue’s Clues from 1996 to 2006, before being involved behind the scenes with follow-up movies Blue’s Clues & You! and Blues Big City Adventure.

“Hold up… is that Steve Burns?!?!” one comment replied to anew clipof the pair in Young Sheldon Season 7, with another pointing out, “I’ve watched all episodes of Young Sheldon and this is the first time that I’ve noticed this is Steve!”

“STEVE?! What are you doing here?!” a third weighed in, with a fourth adding: “I love that Steve always makes the best cameos.”

Burns’ character Nathan was first introduced back in Season 3 when Sheldon is trying to track down a missed episode of Star Trek. From there, Sheldon begins to venture to King Kong Comics, where Nathan works, once he finds his interest in superheroes after a brief health scare.

Nathan is set to return again inSeason 7 Episode 12, which is already setting up key plots for both Sheldon and George. The official synopsis reads “George Sr. gets an exciting job offer; Sheldon prepares for his move to California.”

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Characters such asTam, Paige, and Dr. Sturgis are also set to return for upcoming episodes in Season 7.

Jasmine Valentine is a TV and Movies Writer on Dexerto’s UK team. She’s the go-to source for all things Young Sheldon and Virgin River. Jasmine has also written for the likes of Total Film, The Daily Beast, and Radio Times. You can contact her at jasmine.waters@dexerto.com