Felix Argyle, also known as Ferris, is a demi-human catboy and the court healer for Crusch Karsten's camp in the series Re:Zero kara Hajimeru Isekai Seikatsu. Felix is known for his playful personality, feminine appearance, and skilled healing magic. Despite his flirtatious and whimsical demeanor, Felix is highly competent and deeply loyal to Crusch. His character provides both comic relief and emotional support, playing a significant role in supporting the main cast during critical moments in the story.