The executor (if there is a will) or the administrator (if there is no will) plays a crucial role in the probate process. Their primary responsibility is to manage and oversee the administration of the deceased person's estate. This includes tasks such as gathering and safeguarding assets, identifying and notifying beneficiaries, paying debts and taxes, handling legal proceedings, managing estate finances, and ultimately distributing the remaining assets to the rightful beneficiaries. Executors and administrators have fiduciary duties and must act in the best interests of the estate and its beneficiaries.