Sam Conahan

"Lieutenant Conahan, I trained him back in the day. The guy's so clean, he doesn't even double park"

- Quentin Lance describing Conahan to Oliver Queen.

Lieutenant Conahan was a SCPD officer and founding member of the ACU.

Upon recommendation by his former mentor Quentin Lance he was part of the strike team, that joined Green Arrow on a mission to retrieve the hostages held by Tobias Church. After ending this mission successfully he joined the newly formed Anti-Crime Unit.

When he left the police station later that night, he called his wife and was then ambushed and killed by Prometheus.

Season 5
Conahan
 * "Legacy"
 * "The Recruits" (mentioned)