Bond arrived on the show when his law firm merged with Lockhart Gardner.
"You just never quite know his intentions," Ealy told TV Guide. "That's where it becomes a bit tricky. He refuses to show his real self. No-one knows where they stand with Bond."
Ealy added: "He's definitely on an island by himself, but he's constantly talking about togetherness and moving as a unit. Those are the kinds of people you have to watch."
Ealy also revealed that Bond will act as a mentor for Alicia (Julianna Margulies).
"Derrick shows her that sometimes you have to be a little bit amoral to get things done," he said. "What it means to really be a lawyer is that sometimes you have to make really had decisions that don't make emotional or moralistic sense."
However, Ealy explained that he enjoys playing Bond, saying: "He's intriguing, mysterious, he's in charge, and it's more fun to play someone who other people can't figure out."
The Good Wife continues on Tuesdays at 10/9c on CBS.