Fan Casting Dr. Hank Pym in MMU/6.: The Avengers (2012)

Dr. Pym is a scientist who was working for S.H.I.E.L.D. but got taken by Loki and his minions and brainwashed by his scepter. His job was the building of the portal which could bring Loki's army to Earth. In the end Romanoff helped him to getting his control back and together they locked up he portal. After these events Pym went back to his lab and in the final scene we saw him experimenting with ants...