This study demonstrates how interpreters in a Swedish video relay service (VRS) between deaf and hearing users can simultaneously accomplish two different actions, each directed to a particular user of the service. The study takes a multimodal, ethnomethodological conversation analysis (EMCA) perspective and is empirically based on a corpus of 25 recordings from authentic video calls. Our analysis shows how interpreters, through what we call dual action design, are able to: (1) offer the floor to one party while informing the other party, (2) refer to one of the participants using different forms of deictic reference for the two users of the service, and (3) request confirmation of a source statement from one party while rendering a statement to benefit the other party. The study contributes to current discussions relating to sequentiality, simultaneity, and positioning in interpreting studies and multimodal interaction research.