A person who is a temporary ruler?

A temporary ruler is typically someone who assumes leadership or governing authority for a limited duration, often during a transitional phase or crisis. This role may arise in situations such as an interim government, a caretaker prime minister, or a regent who governs on behalf of a monarch. Their primary responsibilities usually include maintaining stability, overseeing essential functions, and preparing for a return to regular governance or elections. The authority of a temporary ruler is often limited by specific mandates or legal frameworks.