Eyal Lavine is a Mossad agent who Annie Walker often runs into in the field. They have a slightly antagonistic relationship but display mutual respect for the other's tradecraft as each works to achieve their objective first without blowing the other's cover or offering too much assistance. Over time, they come to trust each other more and collaborate, but they are still often pitted as rivals by their agencies. Eyal often cautions Annie about the risks of a life of a spy, including becoming isolated and jaded. He has made sacrifices in his own personal life to do the work he does. Annie sometimes questions how much she can trust Eyal. Her bosses at the CIA are often encouraging her to exploit their working friendship.