Hiroshi is an artist of Japanese descent who lived on Sesame Street between seasons 20 and 21. The ecstatic Hiroshi has an appreciation for all forms of art, whether in the abstract or performance, and displayed a particular admiration for Oscar the Grouch's iconoclastic sensibilities.
The character initially appeared in Episode 2459 in season 19, as a friend of Bob's visiting from Japan. He became a regular on the show the following season. He first appears in his new role as an art student in Episode 2537 and converts the garage in the arbor into his art studio.