New Delhi: Actor John Abraham, who has never failed to surprise audiences with his action-packed stunts, tough looks and disarming smile, says one needs to have a strong attitude to be an action hero. "I always maintain that to be accepted as an action star, you have to be an action hero first. You have to have the physicality, attitude and you have to know that when you turn and look at someobody, that person should feel that this is the end. "If you don't have that, then you can't be an action hero," John said. The "Dishoom" star feels that the action stars world over are Sylvester Stallone, Vin Diesel, The Rock (Dwayne Johnson). "These guys save the world... Biggest action heroes are not Kung Fu guys who do back flips in a room," he said and added: "It's about the attitude and saving the world. I think you need to have that attitude." John will next be seen in the sequel of the 2011 film "Force". He says it will have "real action". "'Force 2' has got very different action. It has very real action... The scale of action is one notch higher than what you have already seen...Yes we have upped the action quotient," he said.