All the dudes below are the same two people!
"Izzy" - after his hero Izzy Stradlin of G'n'R fame - was the name the Lürxx" singer and guitarist used 1995 - 1998.
bass, backing vocals
"Syff" - after Keith Richard's dog - was the name the Lürxx' bassist used 1995 - 1998.
"Nick(e)" was the monicker he used in Finland and Hamburg, 1998 - 2000.
"Johnny" was his choice of name in Finland and Hamburg, 1998 - 2000.
"Xavi" is the name all his friends know him by now, in 2021.
recorders, bass, guitar, backing vocals