Abstract: In theatrical performance practices, actors are stressed once practice stops due to occurring mistakes. Our goal is to reduce the number of mistakes occurring in the theatrical performance practice by cuing the action order. We introduce a cuing system which uses tactile cues through vibrations and notifies actors of the turn of actions. We also reported the user study of the system. The results of the study suggested that the task-order coordination by the cuing system may be used not only for theatrical performance practices, but also for other real-time collaborative works with serial tasks.