A "Hawaii Five-0" episode that featured former "Magnum, P.I." co-star Larry Manetti finished second in the Nielsen ratings Monday, CBS said.

"Five-0" drew 9.11 million viewers to finish behind ABC’s "Castle," which pulled in 9.85 million, CBS said. NBC’s "Deception" finished third.

Among adults 18-49, the key advertising demographic, "Five-0 drew 2 percent of the total viewing audience and 5 percent of those watching TV at the time, CBS said. "Castle" attracted 2.3 percent of the viewing audience and 6 percent of those watching TV.

Manetti, who was Rick on the 1980s series "Magnum," guest-starred as lounge singer Nicky "The Kid" Demarco and sang in the episode.