In addition to the six-member core cast are a bevy of some 25 stars who made guest appearances on 'The Love Boat' over the years.
Seatrade Insider spotted Jamie Farr (best known as Corporal Klinger on the television sitcom 'M*A*S*H') strolling up a grand staircase, while Florence Henderson (Carol Brady on 'The Brady Bunch' and a godmother of 2007's Emerald Princess) perused the offerings at the International Cafe.
Lee Meriwether ('Barnaby Jones,' 'The Munsters Today,' 'Batman,' 'All My Children') was serenaded by musicians in The Piazza on Tuesday evening. Joan Van Ark ('Knots Landing') embarked the ship with Carnival Corp. & plc ceo Arnold Donald.
Bernie Kopell, 'Doc' on 'The Love Boat,' dropped by a media cocktail reception and was swarmed for photos.
Giora Israel, svp, Global Port & Destination Development Group, Carnival Corp. & plc, had his picture taken with MacLeod on Tuesday while the actor best known as Captain Stubing licked an ice cream cone.
'The combination of this amazing ship, the history of Princess and 'The Love Boat' in one place—this is historical,' Israel said.