An odd form of this comes with the audience gender, for the internet niche fandom Vocaloid. While in Japan, the voices of the predominantly-young-female character vocal series are often fawned over my boys and men in Japan ( some of them in their thirties), Vocaloid in general is far more popular with girls and women in America. Alternatively, while the Japanese Vocaloids usually get most of the spotlight with the English Vocaloids used as emergency backup, Big Al, by far the most manly-sounding vocaloid thus far, has gained quite a bit more popularity than you would expect.
Maru, the fat (or, if you prefer, "fluffy") cat from Japan who loves boxes is extremely popular in America and the English speaking world. Urlesque voted Maru as the internet's favorite cat, beating out Surprised Kitty and even LOLCats.
For whatever reason, German gamers love to make blind Let's Play videos, a trend which started in the States. Anglophones (or non-Germanophones at large) trying to find a genuine first-time commentary are often endlessly frustated by this phenomenon.
Look at the Youtube statistics, Sweden happens to be one of biggest sources of views for Epic Meal Time videos.
The Angry Video Game Nerd is rather popular in Japan. Almost every one of his reviews have been completely subbed into Japanese and can be found on Japanese video sharing sites such as Nico Nico Douga.
Conversely, almost every episode of Game Center CX has been subbed into English by Something Awful, and can be found on English video sharing sites such as Youtube.
Along the same lines as the above example, The Nostalgia Critic also has a dedicated Japanese fanbase who sub all his videos. Doug's other character, the Bum, is also popular.
