A roller includes a shaft, and an elastic body portion that is provided on an outer peripheral surface of the shaft, in which the elastic body portion includes an inner peripheral portion which becomes a shaft side, an outer peripheral portion which becomes an outer side with respect to the inner peripheral portion, a plurality of first connection portions which connect the inner peripheral portion and the outer peripheral portion, and a plurality of second connection portions which are provided in a space portion between the adjacent first connection portions and which partition the space portion into one side and the other side of the roller in the axial direction, and in which the first connection portion is inclined in the same direction in a peripheral direction with respect to a radial direction of the roller.