The ruthless billionaire owner of the painting.

Cho and Rigsby go on a rogue mission to retrieve the painting from Arlov, leading to a tense and funny scene where they are too intimidated to tell Lisbon they actually succeeded.

Caid's art curator and buyer who orchestrated the forgery scheme.

Jane gains entry to Arlov’s high-security home by presenting a "replica" of the stolen painting that is actually just a crude drawing he made with a Sharpie.

In one of the episode's most humorous subplots, Jane takes Van Pelt "undercover" at an art gallery by pretending they are a newly engaged couple—much to her visible embarrassment. ⚖️ Resolution

A Russian oil baron with diplomatic immunity who was outbid by Caid for the original painting.