Sumura is one of the Seven Sage, a high rank group within the Team Plasma. 

Pokémon Generations looks back at each generation of the Pokémon video game series, diving into the stories of the games more deeply and getting to know characters and Pokémon better. Visit each region, from Kanto to Kalos, to relive the world of Pokémon like never before!

Franck Capillery is a French actor and voice actor. 

This chapter follows the adventures of Black, who is on a quest to become the Champion of the Pokémon League. He is joined by White, a young woman who owns the Pokémon acting company, the BW Agency, and aims to raise the best Pokémon actor. As they go through the Unova region, they encounter the group Team Plasma, who aim to free Pokémon from Trainers, and the mysterious N.
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(Source: Bulbapedia)

Red is just a normal kid living in the rural Pallet Town, when he decides to go out on his own adventure, along with his rival since childhood, Green. In this world of Pokemon, he makes many friends, humans and Pokemon alike. However, all is not well. Team Rocket is trying to capture Mew, a very rare Pokemon, and is performing experiments on other Pokemon, trying to increase their power. Red and his friends must battle against Team Rocket to stop their cruel experiments and unlock the secrets of Pokemon.<br>

Sumra