Professor Alexander Hole, or A. Hole,
Alexander in the Middle of History
is the omnis specialitas in the world of the Jan and Arjen Sjo. He is usualy consulted for his knowledge in documentaries and other educational videos. He works as a proffesor at the local university and has his own clinic where he treats people with temporal Anomalies. Professor D. Bagg is his colleague and personal friend. His connections with The Professor are unknown.