This short brief describes conversational interview podcasts as an alternative to traditional guest lectures in the context of an online undergraduate course that shifted from in-person to virtual course delivery during the COVID-19 pandemic. The informal format of conversational interviews counters the impersonal tone that can often pervade online learning environments, allows the instructor to guide the guest speaker to share information that is particularly relevant to the class, and reduces the workload for guest speakers. Further, the podcast format offers students flexibility in how and when they engage with the class material. Suggestions for how to create conversational interview podcasts for undergraduate learning are shared.