I'm pretty sure that he did more than just the into, though. There's a bunch of narration in, for example, the Fallout: New Vegas ending covering what happens to all the characters and factions depending upon the decisions you made, and I'm pretty sure that that's the same narrator.

goes looking

https://fallout.fandom.com/wiki/Ron_Perlman

Perlman narrated the following cutscenes in the Fallout games listed below. The intro narration in each of these games starts with the iconic line, "War. War never changes." He did not narrate Fallout: Brotherhood of Steel or Fallout 4, though he did voice a prominent character (the television newscaster) in Fallout 4's prologue and appeared in its first trailer.

Fallout intro

Death messages

Fallout endings

Fallout 2 intro

Fallout 2 endings

Fallout Tactics intro

Fallout Tactics chapter endings

Fallout Tactics endings

Fallout 3 intro

Fallout 3 endings

Fallout: New Vegas intro

Fallout: New Vegas endings

Fallout 76 intro

[–] BigDaddySlim@lemmy.world 5 points 10 hours ago

Not all the end game New Vegas lines are Perlman, he does the ones pertaining to the Courier, but prominent characters in certain factions/towns do the VO for a lot of the end game slides depending on your actions.