The Actor Model is a design pattern that assumes everything is an actor, capable of sending and receiving messages, creating new actors, and maintaining state. Temporal Workflows can be implemented as Actors by using Signals to send messages between them and utilizing the Update feature to return responses. Creating child workflows within a parent workflow allows for the creation of new actors. To build a Workflow that can practically run forever, it's essential to consider issues like Signal and Update loss, ensuring pending signals are handled before continuing as new, and implementing Continue-As-New to restart with a clean event history. Temporal Workflows can be designed to function as Actors by carefully managing message exchange, child workflows, and the use of Continue-As-New to maintain their state.