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| PERFORMER | Brian Muehl |
| DEBUT | 1982 |
Whatshisname is one of Forgetful Jones' horses. Forgetful and his friend Whatshisname are reunited on Guy Smiley's Sesame Street game show, "This Is Your Story."
When the pair meet on the game show, Forgetful mentions that Whatshisname is Buster's brother. Unlike his brother, Whatshisname does not actually talk, only whinnies.