• English / United States: Chairman Rose
• Japanese / Japan: ローズ
• Japanese (Romanized) / Japan: Rose
• Japanese (Trans) / Japan: Rose

Rose is the president of Macro Cosmos and the chairman of the Galar Pokémon League. Chairman Rose was the man who first endorsed Leon. He was in the stadium watching the Masters Eight battle of Leon vs Raihan and he looked quite happy after Leon won the match.

His company develops and supplies energy to Galar. His dream is to harness the power of Eternatus to power the Galar region for the next 1000 years.

He discovered Leon as a young Trainer and helped him get to where he is now as champion and he owes him a lot for that assistance. Leon introduced Ash Ketchum to Chairman Rose just after they defeated the Gigantamax Coalossal. He celebrated their meeting by treating him to a Galar-style gourmet dinner.

After Ash Ketchum found out about his true intentions, he battled and defeated Chairman Rose. Ash Ketchum, Leon and Goh then group battled Eternatus and defeated it. During the battle, Rose watched from his helicopter but ended up crashing. Leon began searching high and low to find him.