Main Role
- William Hsieh Main Role
- Ye Min ZhiHuang Chong Hsing | Kong BuMain Role
- Tu Shih MeiLu Hsiao ManMain Role
- Jean GuoWan Mei RenMain Role
- Jade ChiaTong Ya Rong | Tong Ya FengMain Role
- Kan Ti MenChao De Biao / "Lao Chao"Main Role
- Ming Gin ChengTai Yi ChouMain Role
- Jade ChouChou Ning NingMain Role
- Janel TsaiFang Ke RenMain Role
- An JuanMing Ri HsiangMain Role
- Rex WuYo Fu Kuei / To TiaoMain Role
- Richard RimHan Chia Bao / Tai BaoMain Role
- Kei Ya HsinHu Min Er | Hsiao MeiMain Role
- Jeffrey KungKong Chia Fei / Mo KaMain Role
- SasaChong Nai ChingMain Role
- Ku Han YunChang Ta ChiMain Role
- Kuo Tieh JenLei Hsiang Nan / "Die Jen"Main Role
Support Role
- Jerry YanHong Ming Lung / Bao Long | Shih An [1st Generation student] (Ep. 1-17, 21-39)Support Role
- Penny LinYu Pan Pan [1st Generation student] (Ep. 13-19, 21-62)Support Role
- Ada PanLin Yi Ching [1st Generation student] (Ep. 18-53)Support Role
- Ken ChuChen Chia Bao [1st Generation student] (Ep. 27-39, 52)Support Role
- Lan Cheng LungLan Hsing Lung / Blue [1st Generation student] (Ep. 41-62)Support Role
- Lin Yo WeiSun You Wei / Jiang Yu Lun / "Hacker" [1st & 2nd Generation student] (Ep. 45-76)Support Role
- Wilber PanHan Chao Chie / "Money" [2nd Generation student] (Ep. 62-91, 93-105, 137)Support Role
- Chang Shan WeiKe Chi Ming [2nd Generation student] (Ep. 62-105)Support Role
- Gina LimChi Na / "Gina" [2nd Generation student] (Ep. 73-93, 95-104)Support Role
- Fan Hsiao FanChu Meng Chien / Hsiao Meng [2nd Generation student] (Ep. 84-104)Support Role
- Weber YangYang Chan / "Jungle" [3rd Generation student] (Ep. 106-153, 155)Support Role
- Chen Te LiehChi De Lie / "Funky" [3rd Generation student] (Ep. 106-121, 123-125, 127-132, 134, 136)Support Role
- Peng Xiao TongYeh Hsiao Tong | Peng Hsiao Tong [Queen of Billiards] (Ep. 106-136)Support Role
- Cathy ChungYan Hsin Yi / Xiao Rou [3rd Generation student] (Ep. 106-155)Support Role
- Kelly KuoMa Ching [1st Generation substitute teacher]Support Role
- Phoebe HuangHuang Chian Chian [1st Generation music teacher]Support Role
- Edmond LeungLiang Han Wen [2nd Generation teacher]Support Role
- Tang ChuanYeh Hsiao Dong [3rd Generation school director]Support Role
- Winnie HoHo Pei Wen [3rd Generation English teacher]Support Role
- Ryan KuoChen Jin ChuanSupport Role
- Edward Ou[Classmate]Support Role
- Show LoYu Chi Hsiang [2nd Generation student]Support Role
- Tony FishChai ChaiSupport Role
- Liu Chi MinTsen Hao Chih / Hao ChihSupport Role
- Lin Li WenLan Yu Chian / Hsiao ChianSupport Role
- William SoSo Hsiao KangSupport Role
- George ChangChao Chih | MichaelSupport Role
- Beatrice HsuHsu Wei Wei [3rd Generation student]Support Role
- Sonia Sui[3rd Generation student]Support Role
- Kellie ChianKai LeeSupport Role
- Jiro WangSang TianSupport Role
- Denny HuangDennySupport Role
- Joseph HsiaSu Fa TiaoSupport Role
- Chris KuoLei Xiang NanSupport Role
- Kuan Chin TsungYu Lai Fu / Zhao Xiao DongSupport Role
- Allen Yang[3rd generation student]Support Role
- King Kong LeeQian Xin Jiao [3rd generation student]Support Role
- Maggie LinSaraSupport Role
Guest Role
- Wen WenFeng Hsiao Yuan [1st Generation student] (Ep. 1-7, 11)Guest Role
- Lee WeiLin Lung / Dino [1st Generation student] (Ep. 52-54)Guest Role
- Ady AnTang Ke Ling [2nd Generation student] (Ep. 62-68, 70-71, 73)Guest Role
- Jason HsuLee Meng Che [3rd Generation student] (Ep. 125-128, 132-133, 135)Guest Role
- Masuyama YukiChang Hsian Biao [3rd Generation student] (Ep. 145-155)Guest Role
- Wallace HuoHuo Chian Chi [3rd Generation student] (Ep. 137-146, 149, 151)Guest Role
- David ChaoShan KouGuest Role
- Jiu KongTou Du KeGuest Role
- Huang Chung YuYang GeGuest Role
- Vins WangFang Mu ChenGuest Role
- BillieMrs. HsuGuest Role
- Jason WangWang Shih HsianGuest Role
- Tien FengGeneral WuGuest Role
- Hsieh AngusShen RangGuest Role
- Senda AisaHsiao AiGuest Role
- Dylan KuoChun WeiGuest Role
- Lisa Wang[Video store clerk]Guest Role
- Jay Kao[Online video game guild member]Guest Role
- Tony SunA ChihGuest Role
- Zax WangA RenGuest Role
- Sam WangA WeiGuest Role
- Ming DaoTa MingGuest Role
- Matt WuKuo Jian ChongGuest Role
- Chen Wei MinGrandpa YanGuest Role
- Sunny LiRu HuaGuest Role
- Angela YeHuang LingGuest Role
- Zhang Li Wei[Delinquent]Guest Role
- Chiago LiuMing Ri ChaioGuest Role
- Ann LeeSu LanGuest Role
- Miao Zi Jie[Big Hospital doctor]Guest Role
Unknown
- Yedda Chiu Unknown
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