Who were
the Jedi
that spoke to Rey? And how many of them were voiced by their original actors?
The list of them were in the credits, but scrolled by too quickly.
Obi-Wan Kenonbi: "These are your final steps, Rey. Rise, and take them."
Anakin Skywalker: "Rey."
Ahsoka Tano: "Rey."
Kanan Jarrus: "Rey."
Anakin: "Bring back the balance, Rey, as I did."
Luminara Unduli: "The light. Find the light, Rey."
Qui-Gon Jinn: "Every Jedi who ever lived, lives in you."
Anakin: "The Force surrounds you, Rey."
Aayla Secura: "Let it guide you."
Mace Windu: "Feel the Force flowing through you, Rey."
Anakin: "Let it lift you."
Adi Galia: "Rise, Rey."
Qui-Gon: "We stand behind you, Rey."
Obi-Wan: "Rey."
Yoda: "Rise in the Force, Rey."
Kanan: "In the heart of a Jedi lies their strength."
Obi-Wan: "Rise."
Qui-Gon: "Rise."
Luke Skywalker: "Rey, the Force will be with you. Always."
Screenrant
According to IMBD, the following voice actors contributed to that scene, all of whom acted or voiced the original characters
Mark Hamill - Luke Skywalker
Sir Alec Guinness/Ewan McGregor - Obi Wan Kenobi
Frank Oz - Yoda
Hayden Christensen - Anakin Skywalker
Samuel L. Jackson - Mace Windu
Liam Neeson - Qui-Gon Jinn
Olivia d'Abo - Luminara Unduli
Ashley Eckstein - Ahsoka Tano
Jennifer Hale - Aayla Secura
Angelique Perrin - Adi Gallia
Freddie Prinze Jr. - Kannan Jarus
IMDB has the full cast including voice credits. https://m.imdb.com/title/tt2527338/fullcredits/cast
All the voice actors were ones who voiced them previously either live action or animated.