dǎi tú
evildoer
malefactor; gangster; hoodlum
歹
dǎi
bad
徒
tú
(bound form) disciple; apprentice; believer; (derog.) wrongdoer (as in 騙徒|骗徒[pian4 tu2] "swindler" or 叛徒[pan4 tu2] "traitor" etc)