Marios Katsis was born in Ioannina, in 1985. He is an Electronic and Computer Engineer studied in Technical University of Crete, Department of Electronic and Computer Engineering. He speaks English and French.

Parliamentary Activities
Elected Member of Hellenic Parliament in Region Thesprotia for three elections in a row at 2015 (January) 2015 (September) and 2019 (July).

In current (17th) Parliamentary Term he elected Dean of the Hellenic Parliament.

From September 2015 until June 2019 he was Secretary of the Hellenic Parliament

Political/Social Activities
Coordinator of Digital Policy Sector of SYRIZA’s Parliamentary Group.

Elected member of Technical Chamber of Greece (TEE).

Candidate member of the Hellenic parliament in 2012 in Region Thesprotia with the political party of SYRIZA-EKM.

Youth’s member of political party of SYNASPISMOS from 2007 until 2010.

Member of regional Committee of SYRIZA party in Thesprotia.

Member of antiracist movement of Thesprotia.