I'm seeing all these tenimyu actors in toku shows.

It is strange, but there have been quite a few toku actors whom I got curious about and when I digged, turned out that they had been in the Prince of Tennis Musicals.  I know I'm probably missing a few, but I'm just going to list the ones I cared enough to find out.  Please note that I do not necessarily follow each actor's career.

( Cut for the list and a tiny bit of spoilers on Mebius 28 )

As a side note, Mirai Hibino, the human form of Ultraman Mebius, is played by Shunji Igarashi, a member of D-Boys.  While Igarashi has never been in tenimyu, most of his fellow D-Boys members have performed in the musicals.

Useless observations I just wanted to note.

Hallo, hallo ～♪  <-- (shamelessly lifted from Yuuki Sato's blog.) 

What do Ultraman Mebius and Kamen Rider Kabuto have in common besides both being tokusatsu shows from the year 2006?

( Cut for answers (seven of them; last one not so relevant however). )