Iasonas Fotilas was born in Patras on September 25, 1969. He is the son of Asimakis Fotilas and Alice Kakouri, coming from a family with a strong political background, starting with his great-grandfather Asimakis Fotilas (a military leader of 1821) and his grandfather Aristotelis Fotilas. He is married to Konstantina Roumelioti and is the father of two children, Asimakis and Alice.

He studied at the Law School of the University of Rome, La Sapienza, graduating with honors. He completed a special thesis on the topic "Church and State Relations - Jurisdiction of the Church in the Greek Establishment," as well as special seminars for updating and specializing in European law. He has an excellent knowledge of English and perfect Italian.

He has been practicing law since 1999 and specializes in Criminal Law. He is also completing postgraduate studies in Digital Governance. Additionally, he worked as a lawyer for the National Bank of Greece since 2001. He also served as a member of the Board of Directors of the "Agios Andreas" Hospital in Patras. Before obtaining his law degree, he worked as a manager and public relations officer for a well-known hotel chain and as a commercial representative and supplier of clothing to stores in southwestern Greece.

He is highly involved in social activities. He has collaborated with all the diaspora associations and organizations, offering assistance and legal support to many of our fellow citizens in Italy. He was a member of the Board of Directors of the Patras Carnival Committee and a member of the Board of Directors of the Patras Carnival Social Welfare Municipal Enterprise. He has also been an amateur actor and has repeatedly excelled, winning the first male role award at national amateur theater competitions.

In 2010, he ran for Municipal Councilor for the City Center Electoral District with Mr. Dimitrios Katsikopoulos. He was first elected as a Member of Parliament for the Achaia Electoral District in January 2015 with the "Potami" party. In October 2016, he was expelled from the "Potami" party and became independent. In January 2017, he joined the Parliamentary Group of the "New Democracy" party. Since April 2017, he has been the Deputy Health Sector Coordinator of New Democracy.

He was re-elected in July 2019 with the "New Democracy" party. He is the Secretary of the Standing Committee on Social Affairs, the President of the Special Standing Committee for Monitoring the Social Security System, and a member of the Standing Committee on Cultural Affairs. He has also been a member of the Standing Committee on Public Administration, Public Order & Justice, the Standing Committee on Cultural Affairs, and the Special Permanent Committee on Penitentiary Affairs.