Dr. Jansen is the chief scientist for LuthorCorp's Project Scion.
Season Seven[]
Dr. Jansen appears at the Luthor Mansion giving Lex Luthor the latest reports of the results from Project Scion. The doctor bring Lex dust and informs him that the dust is all that remains of Milton Fine's ship because it has liquefied. Dr. Jansen warns that the liquid is sentient and alive, subdued only by meteor rock.
Later, Lex is at the Project Scion labs with Dr. Jansen trying to find the missing liquid substance that escaped as the result of the showdown between Clark Kent and Lana Lang in a LuthorCorp facility. After he leaves, the material slips out from hiding and attaches itself to a female lab technician.