A roller for electrophotography comprising a mandrel; and an elastic layer on the mandrel, wherein the elastic layer contains a number of hollow particles in a region from a surface of the elastic layer to a depth of 100 μm, characterized in that the hollow particles satisfy conditions (i) and (ii): (i) when the roller for electrophotography is intersected by a first plane perpendicular to an axial direction of the mandrel and passing through a point inside of each of the hollow particles, the point corresponding to, when assuming that each of the hollow particles is a solid particle, a centroid of the solid particle, each of the hollow particles has a flat cross-sectional shape having a long axis and a short axis, and a line passing through the point of each of the hollow particles and the rotation center of the mandrel in the first plane and a line extending in the long axis direction have an intersection point, (ii) when the roller for electrophotography is intersected by a second plane containing the axis of the mandrel and passing through the point of each of the hollow particles, each of the hollow particles has a flat cross-sectional shape having a long axis and a short axis, and a line passing through the point of each of the hollow particles and perpendicular to the axis of the mandrel and a line along the long axis of each of the hollow particles have an intersection point; the cross-section of each of the hollow particles intersected by the first plane has a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less; and the cross-section of each of the hollow particles intersected by the second plane has a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less. a mandrel; and an elastic layer on the mandrel, wherein the elastic layer contains a number of hollow particles in a region from a surface of the elastic layer to a depth of 100 μm, characterized in that the hollow particles satisfy conditions (i) and (ii): (i) when the roller for electrophotography is intersected by a first plane perpendicular to an axial direction of the mandrel and passing through a point inside of each of the hollow particles, the point corresponding to, when assuming that each of the hollow particles is a solid particle, a centroid of the solid particle, each of the hollow particles has a flat cross-sectional shape having a long axis and a short axis, and a line passing through the point of each of the hollow particles and the rotation center of the mandrel in the first plane and a line extending in the long axis direction have an intersection point, (ii) when the roller for electrophotography is intersected by a second plane containing the axis of the mandrel and passing through the point of each of the hollow particles, each of the hollow particles has a flat cross-sectional shape having a long axis and a short axis, and a line passing through the point of each of the hollow particles and perpendicular to the axis of the mandrel and a line along the long axis of each of the hollow particles have an intersection point; the cross-section of each of the hollow particles intersected by the first plane has a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less; and the cross-section of each of the hollow particles intersected by the second plane has a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less. (i) when the roller for electrophotography is intersected by a first plane perpendicular to an axial direction of the mandrel and passing through a point inside of each of the hollow particles, the point corresponding to, when assuming that each of the hollow particles is a solid particle, a centroid of the solid particle, each of the hollow particles has a flat cross-sectional shape having a long axis and a short axis, and a line passing through the point of each of the hollow particles and the rotation center of the mandrel in the first plane and a line extending in the long axis direction have an intersection point, (ii) when the roller for electrophotography is intersected by a second plane containing the axis of the mandrel and passing through the point of each of the hollow particles, each of the hollow particles has a flat cross-sectional shape having a long axis and a short axis, and a line passing through the point of each of the hollow particles and perpendicular to the axis of the mandrel and a line along the long axis of each of the hollow particles have an intersection point; the cross-section of each of the hollow particles intersected by the first plane has a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less; and the cross-section of each of the hollow particles intersected by the second plane has a ratio of the length of the long axis to the length of the short axis of 1.2 or more and 1.9 or less.