A member of Liam Bilby's small Orion Syndicate crew on Farius Prime, who works alongside the undercover Miles O'Brien in 2374.
Krole appears in the Deep Space Nine episode Honor Among Thieves. He is one of the two men who make up Liam Bilby's crew on Farius Prime, the other being Flith, and he is present when a drifter calling himself Connelly, in reality Chief O'Brien working for Starfleet Intelligence, proves his worth by fixing their equipment.
Krole is the muscle of the group. He is wary of the newcomer at first, but once Bilby vouches for Connelly he accepts him as one of them and works with him on the crew's jobs.
He follows Bilby into the scheme set up by the Vorta Gelnon to assassinate the Klingon ambassador to Farius, a plan Starfleet and the Klingons already know about, and which none of the crew is expected to survive.