  In this work we study the formation of $N^*$'s as a consequence of the
dynamics involved in the $ND\bar D^*-N\bar D D^*$ system when the $D\bar
D^*-\bar D D^*$ subsystem generates $X(3872)$ in isospin 0 and $Z_c(3900)$ in
isospin 1. States with isospin $I=1/2$ and mass in the energy region
$4400-4600$ MeV are found to arise with spin-parity $J^P=1/2^+$ and $3/2^+$,
leading to predictions in this way of the existence of $N^*$ resonances with
hidden charm and a three-body nature. We also discuss the possibility of the
existence of $\Delta_c$ states, i.e., $\Delta$'s with hidden charm.
