- Bernard Benguigui - Tour manager.
- Rachid Bthn - Michel's step child. MaryLaure Roperch's child. Michel created a song of "Rachid".
- Gilda Buttà - Michel's 2nd wife. Italian classic pianist.New !
- Edouard Detmer - He drew a tile in Place Michel Petrucciani. Producer of album "Flashback".New ! Francis Dreyfus - Producer. He found Dreyfus jazz label.
- Trox Drohart - Drummer. Michel's friend. He called to Michel in the United States. Real name is Richard Scott.New !
- Bernard Ivain - Agent
- Isabelle Mailé - Michel's 3rd wife. dead March in 2005.
- Erlinda Montano - Michel's 1st wife.New !
- Riccardo Muti - Conductor of Italy. When he was in l'Orchestra della Scala di Milano, he and Michel planed at their project.
- Thierry Pérémarti - Friend. Journalist.
- Alexandre Petrucciani - Michel's child. MaryLaure Roperch's child.
- Gneviève Peyrègne - Michel's manager. (in 1984)
- Manhu Roche - Michel's friend. Drummer. In 1975, he met Michel. His brother, guitarist, Philippe Roche introduced him to Michel. In those day, he was doing railroad-related work. Michel discoverd his talent of drum.
- Philippe Roche - Guitarist. He met Michel ,because he played with Tony Petrucciani. Brother of Manhu Roche.
- MaryLaure Roperch - Michel's girl friend. Mother of Alexandre. Her birthday is September 2nd. Michel dedicated "September 2nd" to her.
- Denis Tourrenc - Michel's friend. He lives at Montelimar in France. His wife is daughter of Nicolas de Staël.