A cable actuator comprising: • a frame ; • a screw mounted on the frame and extending along a first axis (Ox); • a nut co-operating with the screw ; • a motor arranged to drive the screw in rotation; • a first cable strand (6.1) and a second cable strand (9.1) coupled directly to the nut and extending on a first side (8.1) of a first plane (P1) orthogonal to the first axis (Ox) and containing the nut , the first cable strand (6.1) and the second cable strand (9.1) extending in a second plane (P2); • a third cable strand (6.4) and a fourth cable strand (9.4) coupled directly to the nut and extending on a second side (8.2) of the first plane (P1), the third cable strand (6.4) and the fourth cable strand (9.4) extending in a third plane (P3); • the second plane (P2) and the third plane (P3) being distinct; and • the first cable strand (6.1) and/or the second cable strand (9.1) and/or the third cable strand (6.4) and/or the fourth cable strand (9.4) being functionally connected to an element that is to be moved, the cable actuator being caracterized in that the first plane (P1) subdivides the second plane (P2) into a first half-plane (P21) in which the first cable strand (6.1) and the second cable strand (9.1) extend, and into a second half-plane (P22) not having any cable strands that are directly connected to the nut ; and in that • the first plane (P1) subdivides the third plane (P3) into a third half-plane (P31) in which the third cable strand (6.4) and the fourth cable strand (9.4) extend, and into a fourth half-plane (P32) not having any cable strands that are directly connected to the nut. • a frame ; • a screw mounted on the frame and extending along a first axis (Ox); • a nut co-operating with the screw ; • a motor arranged to drive the screw in rotation; • a first cable strand (6.1) and a second cable strand (9.1) coupled directly to the nut and extending on a first side (8.1) of a first plane (P1) orthogonal to the first axis (Ox) and containing the nut , the first cable strand (6.1) and the second cable strand (9.1) extending in a second plane (P2); • a third cable strand (6.4) and a fourth cable strand (9.4) coupled directly to the nut and extending on a second side (8.2) of the first plane (P1), the third cable strand (6.4) and the fourth cable strand (9.4) extending in a third plane (P3); • the second plane (P2) and the third plane (P3) being distinct; and • the first cable strand (6.1) and/or the second cable strand (9.1) and/or the third cable strand (6.4) and/or the fourth cable strand (9.4) being functionally connected to an element that is to be moved, the cable actuator being caracterized in that the first plane (P1) subdivides the second plane (P2) into a first half-plane (P21) in which the first cable strand (6.1) and the second cable strand (9.1) extend, and into a second half-plane (P22) not having any cable strands that are directly connected to the nut ; and in that • the first plane (P1) subdivides the third plane (P3) into a third half-plane (P31) in which the third cable strand (6.4) and the fourth cable strand (9.4) extend, and into a fourth half-plane (P32) not having any cable strands that are directly connected to the nut. <EOS>