+1
Another vote for Captain Daniel Craigg (Rex Harrison) in the Ghost and Mrs. Muir (1947). Spoiler! I particularly loved the part where, years later, Lucy Muir learns that her young daughter Anna (Natalie Wood!) also saw Captain Craigg. And the ending ... so unapologetically sweet and sentimental.
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Scarecrow: I haven't got a brain ... only straw. Dorothy: How can you talk if you haven't got a brain? Scarecrow: I don't know. But some people without brains do an awful lot of talking, don't they? Dorothy: Yes, I guess you're right.