Thodoris Maraidonis was born in Athens in 1982. He has been involved with music since his childhood. Initially he studied classical guitar and various instruments including the double bass.

He is a graduate of the Athens University Music Department and has received lessons by Giorgos Grigorakos, Michalis Yiounanlis, Yiannis Diskos and Thodoris Kuelis.

Since 2007 he has participated in various greek music and jazz projects, such as ΜΑΝ.ΜΑΡ.ΜΑΡ., the Prime Moment Quartet, the Alone Together Trio, the Roy Kaliva Quartet amd more, playing either the guitar or the double bass. He has also composed music for theatre performances.