An executor is the personal representative of an estate. They are the person in charge of taking control of the estates assets, paying off any debts, and distributing assets to the beneficiaries per the terms and conditions of a will. Anyone can be chosen to be the executor of a will, but it should be someone who is both competent and trustworthy. The person selected should be outlined in the will. Someone appointed to be the executor of a will has the right to refuse. There should be a backup executor in place just in case the original executor is unable or refuses the duty.
An administrator is a person appointed by the court to manage and distribute the estate of a person who dies without a will.