Rubén Doblas Gundersen is a Spanish-Norwegian YouTuber born in 1990 in Mijas, Spain, and well known for his videos of gameplay and vlogs. Currently, he has over 40 million subscribers and his YouTube account is 50th most subscribed on YouTube. He is also very popular on Twitch, having the third most followed channel. On YouTube, he has two channels elrubiusOMG and Rubius Z. The YouTuber cursor for a mouse with Rubén Doblas Gundersen aka Rubius Z!