Seven people will appear before an anti-terrorism judge as part of an investigation into the beheading of a school teacher in France.
The attacker, 18-year-old Abdullakh Anzorov, was shot dead by police.
Two minors as well as a parent who reportedly exchanged text messages with the killer are among those who will appear in court on Wednesday.
Mr Paty was subject to an online hate campaign after he showed the cartoons in two lessons about free speech earlier this month.
The campaign was allegedly launched by a father of one of his pupils. The 48 year old, who has been named in French media only as Brahim C, is accused of issuing a “fatwa” against the teacher.
He is also reported to have exchanged a number of text messages with Mr Paty’s killer prior to the attack, which happened close to the teacher’s school in Conflans-Sainte-Honorine on Friday.
The two minors who are set to appear in court are suspected of having taken money in exchange for information on Mr Paty.
Sixteen people were arrested as part of the investigation, but nine have since been released.
A national day of tribute will be held for Mr Paty on Wednesday.
President Emmanuel Macron will attend a memorial ceremony at the Sorbonne University in Paris with the teacher’s family and some 400 guests.
Mr Macron is expected to posthumously give Mr Paty France’s highest award, the Legion d’Honneur, at the event.
Earlier, the president held a call with Russian President Vladimir Putin and urged co-operation in fighting terrorism. Mr Putin described the attack as a “barbarous murder”.
Mr Paty’s killer, Anzorov, was born in Moscow and his family is from Russia’s Muslim-majority Chechnya region in the North Caucasus. He had lived in France since 2008.
Mr Macron said he wanted to see a “strengthening of Franco-Russian co-operation in the fight against terrorism and illegal immigration”, the French presidency said.
Russia has played down any association with the attacker. “This crime has no relation to Russia because this person had lived in France for the past 12 years,” a spokesman of the Russian embassy in Paris told the Tass news agency on Saturday.