Alex Zethson is a pianist and keyboardist, based in Stockholm and Athens. His playing can be heard in bands such as Je Suis!, Like Rivers, Angles 9, Sven Wunder, Fire! Orchestra, Goran Kajfeš Tropiques, Yokada and Mariam the Believer, as well as in collaborations with Norrbotten Big Band and Trondheim Jazz Orchestra.

His albums have been released on Thanatosis, SUPERPANG, Supertraditional, Clean Feed and Relative Pitch Records.