One actor (Wally Kurth) is on General Hospital and Days of our Lives, and it is super freaky when he appears on both soaps, on the exact same day. The two shows have different filming schedules, which is how that's possible, but it still weirds me out.
He's a background character on both soaps. On Days, he plays Justin Kiriakis, the father of Sonny. Sonny is one of the characters who was in the first gay marriage in soap opera history. His marriage to Will is pretty much over now, sadly. Will cheated on him, with his ex-boyfriend. Will's defense is, "I didn't know he was your ex!", which is a pretty weak argument.
On GH, he plays Ned Ashton, the son of Tracey. He normally showed up as a side character, in her storylines. Now, after more than a year, he's finally got a own storyline that doesn't involve his mother! Namely, he's pretending that he is the father of Olivia's baby. The real father is going to be pretty mad, when he finds out the truth. (And since this is a soap opera, the baby will most likely be born in three months.)