prime mover Synonyms

primum mobile first cause tractor torchbearer spawner protagonist producer innovator key factor planner pioneer originator organizer mover driving force creator motive force moving spirit implementer standard-bearer first mover electromotive force motivator groundbreaker motive power mastermind founding father kinetic energy maker mainspring locomotion doer deviser developer designer demiurge constructor cause builder begetter author architect agent engineer executant inventor introducer instituter instigator inspirer