<Ul> <Li> Bruce Willis as John McClane, an NYPD detective in Russia to find his son, John McClane, Jr . </Li> <Li> Jai Courtney as John "Jack" McClane, Jr., the son of the senior McClane and a CIA operative on a mission in Russia . </Li> <Li> Sebastian Koch as Yuri Komarov, a powerful Russian terrorist who's a political prisoner and Irina's father . </Li> <Li> Yuliya Snigir as Irina Komarova, Yuri's daughter </Li> <Li> Sergei Kolesnikov as Viktor Chagarin, a corrupt, high - ranking Russian official . </Li> <Li> Radivoje Bukvić as Alik, Chagarin's main enforcer . </Li> <Li> Cole Hauser as Mike Collins, a CIA operative and Jack's partner . </Li> <Li> Mary Elizabeth Winstead as Lucy McClane, McClane's oldest child and Jack's elder sister . </Li> <Li> Amaury Nolasco as Murphy, an NYPD detective and McClane's friend . </Li> <Li> Roman Luknár as Anton </Li> <Li> Ganxsta Zolee as MRAP Driver </Li> </Ul> <Li> Bruce Willis as John McClane, an NYPD detective in Russia to find his son, John McClane, Jr . </Li> <Li> Jai Courtney as John "Jack" McClane, Jr., the son of the senior McClane and a CIA operative on a mission in Russia . </Li> <Li> Sebastian Koch as Yuri Komarov, a powerful Russian terrorist who's a political prisoner and Irina's father . </Li>

Who played bruce willis's son in a good day to die hard