**Yoko Tsukasa** is a Japanese actress renowned for her prolific film career, particularly in the science fiction and *kaijū* (giant monsters) genres produced by Toho Studios.

Among her most significant roles are those in classics such as *Mothra* (1961), *Ghidorah, the Three-Headed Monster* (1964), and *Godzilla vs. Ebirah* (1966). She often portrayed intelligent, dignified, and resilient female characters – scientists, journalists, or heroic figures – who faced colossal threats with calm and determination. Her refined elegance and reassuring presence made her an iconic face of 1960s Japanese fantasy cinema.