Alerio

Alerio is an informant for Caesar's Legion in 2281. He watches all activity on the New Vegas Strip and reports the information back to Caesar.

Background
If Vulpes Inculta dies, he is the person who informs the Courier that Caesar wishes to have an audience with him. Alerio will also provide them with the Mark of Caesar which will provide safe passage to The Fort.

Quests
Render Unto Caesar: If Vulpes Inculta dies before the Courier reaches the Strip, Alerio will invite the Courier to meet Caesar himself.

Appearances
Alerio appears only in Fallout: New Vegas.

Behind the scenes

 * "Aleatorius" -a, -um, is a Latin adjective meaning "of a gambler."
 * "Alerio" is Latin for "eagle."

Bugs
Long after inviting you to meet with Caesar, he may appear, run to the Courier, and initiate dialogue saying only "What do you need?" while your only option will be to end the conversation. This can even occur inside private hotel suites. (This can happen if you never met Caesar, or even if you have already killed Caesar).
 * When this occurs, Alerio may become permanently stationary at the Lucky 38 Hotel's entrance.
 * If he is killed when this occurs, he may respawn after a random amount of time.