Wiki 24
This article's subject relates to Season 1 of 24.This article's subject relates to the 24 expanded universe.

Detective Frank Castalano was a friend of Jack Bauer's who worked for the LAPD Tactical Squad.

Before Day 1[]

Castalano alerted Jack Bauer and CTU to the suspicious murder of Hugh Vetri. (Trojan Horse)

Day 1[]

When Kim Bauer first went missing on Day 1, Jack called Frank and asked him to keep an eye out for her on his end. ("12:00am-1:00am")

Background information and notes[]

Live appearances[]

* — Voice only