The incident occurred on platform 3 of the station around 9.45pm. The victim was taken to hospital with a head injury – he has since been released.
One of the men in the photographs is described as being about 6 feet in height, heavy build, with short blonde or red hair and facial hair. He was wearing a black turtle neck top, grey dress trousers and black shoes.
The second man is described as being thin with short blond hair and facial hair. He was wearing a white t-shirt, black shirt, blue jeans and black shoes.
Information can also be given anonymously to the independent charity Crimestoppers on 0800 555 111.