This study determined if features of an action plan held in working memory are activated to the same extent (consistent with serial memory theories) or in a gradient (consistent with theories that assume serial order is imposed prior to response selection). Two visual events (A and B) occurred in a sequence. Participants planned an action (3-finger, key sequence) to the first event (Action A) and maintained this action in working memory while executing a speeded response (1-finger key-press) to the second event (Action B). Afterwards, participants executed Action A. We manipulated whether Action B overlapped with the first, second or final feature of Action A, and examined the pattern of correct, Action B RTs at the different overlap locations by finger (index, middle, ring), as well as the error rates of both Action A and Action B. Results indicate that 3-finger sequences were not activated equally or in a gradient. Instead, feature activation reflected a serial position curve or a reverse serial position curve dependent on finger.