It is obvious that many of the celebrities making cameos has done this series in a past.
Such as the case for the Uehara Haruna whom I have wrote about previously. (for those haven't read about it yet) http://www.shibatabread.com/2009/08/perseverance-pt-9.html
Another celebrity making another cameo is Kazuo Umezu.
Here's a Japanese word that many Japanese think is from an English, but is actually a Portuguese;
トランプ or Trump or Playing Cards in English
Thank you, Alex
Watch No L@ughing H0tel Men English Sub 16 in Comedy | View More Free Videos Online at Veoh.comGaki No Tsukai - No Laughing Hotel Man