Yes, in book 6.
To get the death eaters into Hogwarts.
Death Eaters, he was one himself but it is unconfirmed if he had the dark mark.
It depends what you mean by group. He was in Slytherin house and he was a death eater.
Draco's dad is Lucius Malfoy and his mum is Narcissus Malfoy.
If you mean the Harry Potter character, then Lucius Malfoy and Narcissa Malfoy (formerly Narcissa Black)
Draco (potters rival) , Lucius (Draco's dad the death eater), Narcissa (Draco's mother) or Scorpius (Draco's son in the epilogue)?
No. Tom was at Hogwarts before Lucius. Lucius' father Abraxus was one of Tom's original Death Eaters
Voldemort, Draco Malfoy, the Malfoy's, the Death Eaters, and most of the Slytherins. Some of the Death Eaters names' include the Malfoy's, Bellatrix Lestrange, Peter Pettigrew, Goyle, and Crabbe. There are more names in the book Harry Potter and the Goblet of Fire, when Harry is tied up on Tom Riddles father's grave.
Tom Riddle Draco Malfoy and othe Slytherin students Lucius Malfoy and other Death-Eaters Severus Snape (arguable) Voldemort Dolores Umbridge (not arguable)
Draco Malfoy, Amycus Carrow, Alecto Carrow, Fenrir Greyback, Severus Snape, and Yaxley
He uses it to go in to repair the Vanishing Cabinet so that the Death Eaters could come inside Hogwarts.
No