Phalti
The man traditionally called Phalti (or Phaltiel) appears in UPDV under the spellings Palti and Paltiel. He is the son of Laish, of Gallim, and the second husband Saul gave to Michal — David's wife — during David's exile.
Saul Gives Michal to Palti
The first notice is a single sentence inside the Abigail narrative: "Now Saul had given Michal his daughter, David's wife, to Palti the son of Laish, who was of Gallim" (1Sa 25:44). The verse identifies Palti by father (Laish) and town (Gallim), and frames the giving as Saul's act — Michal is still called "David's wife" even as she is handed over.
Paltiel Loses Her Back
When Abner negotiates with David and Ishbosheth retrieves Michal, the same man returns under the longer form of the name and as her present husband: "And Ishbosheth sent, and took her from her husband, even from Paltiel the son of Laish" (2Sa 3:15). The next verse follows him as far as the road allows: "And her husband went with her, weeping as he went, and followed her to Bahurim. Then Abner said to him, Go, return: and he returned" (2Sa 3:16). The whole portrait of Phalti in scripture is in those three verses — given a wife, weeping after her, sent home.