An actuator includes: a movable portion that swingably moves around a first axis; a first shaft that extends from the movable portion and swingably supports the movable portion around the first axis; a frame portion that is connected to the first shaft and swingably moves around a second axis that intersects the first axis; a second shaft that extends from the frame portion and swingably supports the frame portion around the second axis; a support portion connected to the second shaft; a coil provided on the frame portion; and a magnet that produces a magnetic field that acts on the coil, wherein the frame portion is so formed that the frame portion surrounds the movable portion, the first shaft, the second shaft, and the support portion in a plan view viewed in a thickness direction of the movable portion.