First appearance: 5.11: Otherwise Engaged
O'Donnel was one of Gus's mates from his sea fairing days. He convinced Gus in winter 1908/1909 to leave the hotel and join him on his ship 'The Annie Jane.'

First appearance: 7.11: Return to Me
Odelia was a nurses aid working at a missions home in Charleston, South Carolina. Felicity suspected that she had knowledge of Gus's whereabouts and later discovered that Odelia was the mysterious person who called and informed her that Gus was still alive.

Elbert's brochure, which inspired Felix to join the Navy (7.13: So Dear to My Heart).

First appearance: 7.8: Ah... Sweet Mystery of Life
Edward Osbourne was a potential investor that considered the White Sands Hotel to be out of date and proposed that it change management. Simon turned down Osbourne's proposal and refused to leave the hotel.