Storyboards are used in user-centred design (UCD) to clarify a scenario that describes the future use of a system. Although there are many styles of storyboarding, the graphical notation and language are very accessible for all team members of a multidisciplinary team. This papers describes how principles and techniques from comics can facilitate storyboarding in our COMuICSer approach and tool. COMuICSer formalises the way that storyboards are created, while preserving creative aspects of storyboarding. In combination with tool support for COMuICSer, this simplifies the relation of storyboards with other artefacts created in UCD such as structured models and UI designs and supports communication in multidisciplinary teams.