>>56726441>??? as the placeholder name when you meet him in GSC>ライバル (Raibaru; Rival) as his invisible Trainer class and default name in Stadium 2>シルバー (Shirubā; Silver) as the default name if you don't name him in Gold and Crystal, as well as his name in the Pokémon Special manga>ゴールド (Gōrudo; Gold) as the default name if you don't name him in Silver>ブラック (Burakku; Black) is his name in the Golden Boy's manga>銀次郎 (Ginjirou; meaning Silver + Next/Second + Son (common male name ending)) in the Pocket Monsters manga>とおりすがりのしょうねん (Tōrisugari no shounen; Passerby boy) as the placeholder name in HGSS>ソウル (Souru; Soul) as the default name if you don't name him in HeartGold>ハート (Hāto; Heart) as the default name if you don't name him in SoulSilver>シゲル (Shigeru; "Gary") as the default name in the SW97 demo for Gold>サトシ (Satoshi; "Ash") as the default name in the SW97 demo for SilverSpecial was following the pattern from what they did in Gen I where they named the characters after the version names, with the protagonist being the lead version and the rival being the second version. By Gen II, Red and Green ("Blue" internationally) had been decided as the final names for the Gen I protagonist and rival in the games, so by extension, fans decided the Gen II protagonist and rival would be called Gold and Silver. When HGSS came out, the male protagonist would appear as an unnameable NPC if you chose the female protagonist, and he was called Ethan (Hibiki) in that role, but the rival never got a definitive name. It took until Masters to just say "Yeah, we'll call him Silver".
