Stephen Amell stars in “Arrow” and he is interested in a crossover with “Supernatural.” Stars of “Supernatural” Jensen Ackles and Jared Padalecki have also shown interest in a crossover. Yet so far nothing seems to have progressed in this mutual desire for a crossover. Amell posted a photo on Twitter of Ackles and himself saying: “It’s the crossover we deserve.” Although some fans would love to see a crossover many cannot see how the two different series would do so.