Tsuyoshi participated in various TV series and became the major role of the drama in 1997 (Iihito).  Here are the TV series which Tsuyoshi has taken part in.
 
 

Name of the TV Series	Name in English **	Name in Chinese **	Year & # of episodes
Ienaki Ko 2	Homeless girl (II)	沒有家的女孩 (II)	1995 - 12 episodes
Mada koi wa hajimaranai		戀愛還未開始	1995 - 11 episodes
Kekkon Shiyouyo	Let's married	我們結婚吧!	1996 - 12 episodes
Oishii kankei	"Delicious" relationship	美味關係	1996 - 12 episodes
Iihito	A good guy	一個好人	1997 - 11 episodes
Narita Rikon	The divorce of Narita	成田離婚	1997 - 10 episodes
Sensei shiranaino?	Don't you know, teacher?	先生, 你不知道?	1998 - 12 episodes
Jinbee		陣平	1998 - 11 episodes
Team			1999 - 11 episodes
Food Fight			2000 - 11 episodes
Star no koi	Fantasy of Love	明星之戀	2001 - 11 episodes
Boku no ikiru michi	Have a good die	我的生存之道	2003 - 11 episodes
Boku to kano to kano no ikiru michi	She & I, & her way of living	我和她, 她的生存之道	2004 - 11 episodes
Koi ni ochitara	Falling in love, my secret to success	墬入戀愛	2005 -

** The names of the TV series are not the official one, just "made up" by Totoro.  Sorry!  (**>)