Maseo Yamashiro, played by Karl Yune, is a man from Oliver's past who returns in his present. Maseo joins the League of Assassins and is on the side of Ra's al Ghul, but still has a soft spot for ...

Wow, this week's Arrow isn't wasting any time with the bombshells. It turns out that Maseo Yamashiro (Karl Yune) handed the Alpha and Omega virus to Ra's al Ghul (Matt Nable). Apparently after ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. We'll start with the first, since it's the most absurd but expands on a ...

Karl Yune has joined the cast of the CW drama Arrow. He will recur as Maseo Yamashiro, a skilled martial artist who is married to Katana (Devon Aoki). The character will be introduced in flashback as ...

You didn't really think we could go an entire season without seeing the Island of Lian Yu, did you? This week, Arrow continued their tradition of one flashback heavy ...

TVLine has learned that Karl Yune has landed the major recurring role of Maseo Yamashiro, who will be introduced in flashbacks as Oliver’s handler. Over time, he also will evolve into a teacher and a ...

In Arrow,Maseo will be introduced through flashbacks as Oliver’s Hong Kong handler. Like Katana, he becomes a mentor to Oliver, and helps put him on the path to becoming Arrow.

According to TVLine, Karl Yune (Memoirs of a Geisha) has landed the role of Maseo Yamashiro in the highly anticipated third season of The CW's Arrow. The site reveals that he will be introduced in the ...

Karl Yune has joined the cast of Arrow for its third season. Yune will play Maseo Yamashiro, Oliver Queen's handler, who will be introduced in flashbacks during the season, TVLine reports. Leslie ...