A set of new global phenomenological optical model potential parameters for the actinide region with incident nucleon energies from 1 keV up to 300 MeV is obtained.They are based on a smooth, unique functional form for the energy dependence of the potential depths and on physically constrained geometry parameters.The available experimental data including the neutron total cross sections, nonelastic cross sections, elastic scattering cross sections, elastic scattering angular distributions, and proton reaction cross sections and elastic scattering angular distributions of [sup]232[/sup]Th and [sup]238[/sup]U are used.