|Played by:||Charlotte Gainsbourg|
|First appearance:||Independence Day: Crucible|
|Last appearance:||Independence Day: Resurgence|
Dr. Catherine Marceaux is a French psychiatrist.
Following the War of 1996, Dr. Marceaux treated survivors that were mentally traumatized by the invasion. Later on, Marceaux researched on victims that were in direct mind-to-mind contact with the aliens. She soon discovered that many of these victims seen visions of alien symbols, more prominently of a circle with a line drawn through it.
Marceaux later published her findings in which she theorized that contact between humans and aliens showed a residual effect. She conjectured that part of this residual contact was the absorption by humans of alien semiotic structures, of the symbols by which they understood and negotiated the universe. Several years later, Marceaux discovered that the people who were recovering from their mind-to-mind contact were regressing back to their symptoms that are worse than before.
Marceaux had applied on three occasions for a visa to enter the National Republic of Umbutu to conduct her studies amongst the Umbutu people due to their exposure in their ground war against the aliens. But she was denied due to to the nation's strict isolationist policy.
In 2012, Marceaux attended the ESD Spring Expo in French Guiana. There, she first met the ESD Director, David Levinson. Marceaux would meet Levinson again in Lisbon and eventually forming a brief bond between them.
Marceaux had written a number of books, including Life After Contact, Collected Case Studies [about] Psychic Residual Condition and The Circle and the Alien Mind.
War of 2016Edit
In July 2016, Marceaux was finally able to be granted permission to visit Umbutu after Dikembe Umbutu took over the country. She was eventually reunited with Levinson, who was also invited by Dikembe to study the country's intact City Destroyer that was recently reactivated. She, Levinson, and Dikembe entered the City Destroyer and discover the vessel had sent a distress signal into space.
When arriving to Area 51, Thomas Whitmore allowed himself to interrogate an alien prisoner. Marceaux then show the prisoner the picture of the spherical object and demanding why its kind is afraid of it and the meaning behind it. This, however, provoked the alien to almost killing Whitmore until it was killed by Dikembe.