Dr. Light

Dr. Thomas Light is one of the main protagonists in the Mega Man series

Mega Man 1
Light created Mega Man in order to save the world. When Mega Man gets a new weapon, Dr. Light gives him a message.

Mega Man 2
Light gives him messages gives Mega Man new messages. He tells Mega Man to save the world from Wily.

Descriptions
Dr. Light gives Mega Man various descriptions.

Other Media
Dr. Light appeared in every episode in the Mega Man cartoon. He has dark grey beard.

Dr. Light looked very different than in the Mega Man version in Captain N. He was a little hair and his hair and facial hair are white.

He also appeared in Super Adventure Rockman.

Trivia
Since, Dr. Light passed away, a new character, Mega Man X was created.