Actuator device, comprising: - a main body with a base body and buildup body which extends from the base body in a thickness direction, - a plurality of actuators (11, 12, 13) forming the buildup body, wherein each of the actuators (11, 12, 13) extends in a depth direction and is formed of an actuator body (11a, 12a, 13a) which is made of a piezoelectric or electrostrictive material and comprises actuation electrodes which are disposed at or in the actuator and which are distanced from each other, wherein the actuators (11, 12, 13) are arranged behind each other in the longitudinal direction of the actuator device, wherein a actuation area segment (S0a, S1a, S2a, S3a) of a recess (S0, S1, S2, S3) is formed between each of two neighboring actuators (11, 12, 13), wherein the actuators (11, 12, 13) comprise electroconductive actuator connection coatings (31d, 32d, 33d) which are electrically connected to the actuation electrodes of the actuators (11, 12, 13), wherein the actuator connection coatings (31d, 32d, 33d) at least in sections are disposed: (i) either on a surface of the base body which is oriented in the thickness direction, (ii) or on an actuator step section (11n, 12n, 13n) of the actuators (11, 12, 13), wherein the actuator step section joins in depth direction a respective actuator body (11a, 12a, 13a) of the actuators (11, 12, 13), wherein between actuator connection coatings (31d, 32d, 33d) of respective two neighboring actuators (11, 12, 13) a respective connection area segment (SOb, S1b, S2b, S3b) of a respective recess (S0, S1, S2, S3) is disposed, - a printed circuit board which extends in the longitudinal direction of the actuator device over at least sections of the actuator connection coatings (31d, 32d, 33d), wherein the conductive paths of the printed circuit board are in electrical contact with the actuator connection coatings (31d, 32d, 33d), wherein in the connection area segment (SOb, S1b, S2b, S3b) of the respective recess (S0, S1, S2, S3) at least in sections a connection layer is disposed which is made of a resin reinforcement material, wherein the connection layer at least in sections contacts side surfaces (AS1, AS2) which delimit a respective connection area segment (SOb, S1b, S2b, S3b) and which are opposed to each other, the surface section of the base body which is oriented in the thickness direction, the area of the printed circuit board which faces the surface section of the base body, in order to support the printed circuit board in the area of the respective connection area segments (S0b, S1b, S2b, S3b) of a respective recess (S0, S1, S2, S3) and to fix the printed circuit board to the actuator connection coatings (31d, 32d, 33d), wherein the resin reinforcement material contains bismaleimide with a portion between 5 percent by weight and 90 percent by weight of the reinforcement material. - a main body with a base body and buildup body which extends from the base body in a thickness direction, - a plurality of actuators (11, 12, 13) forming the buildup body, wherein each of the actuators (11, 12, 13) extends in a depth direction and is formed of an actuator body (11a, 12a, 13a) which is made of a piezoelectric or electrostrictive material and comprises actuation electrodes which are disposed at or in the actuator and which are distanced from each other, wherein the actuators (11, 12, 13) are arranged behind each other in the longitudinal direction of the actuator device, wherein a actuation area segment (S0a, S1a, S2a, S3a) of a recess (S0, S1, S2, S3) is formed between each of two neighboring actuators (11, 12, 13), wherein the actuators (11, 12, 13) comprise electroconductive actuator connection coatings (31d, 32d, 33d) which are electrically connected to the actuation electrodes of the actuators (11, 12, 13), wherein the actuator connection coatings (31d, 32d, 33d) at least in sections are disposed: (i) either on a surface of the base body which is oriented in the thickness direction, (ii) or on an actuator step section (11n, 12n, 13n) of the actuators (11, 12, 13), wherein the actuator step section joins in depth direction a respective actuator body (11a, 12a, 13a) of the actuators (11, 12, 13), wherein between actuator connection coatings (31d, 32d, 33d) of respective two neighboring actuators (11, 12, 13) a respective connection area segment (SOb, S1b, S2b, S3b) of a respective recess (S0, S1, S2, S3) is disposed, (i) either on a surface of the base body which is oriented in the thickness direction, (ii) or on an actuator step section (11n, 12n, 13n) of the actuators (11, 12, 13), wherein the actuator step section joins in depth direction a respective actuator body (11a, 12a, 13a) of the actuators (11, 12, 13), - a printed circuit board which extends in the longitudinal direction of the actuator device over at least sections of the actuator connection coatings (31d, 32d, 33d), wherein the conductive paths of the printed circuit board are in electrical contact with the actuator connection coatings (31d, 32d, 33d),