Chad Allen, who is known to TV viewers from his run on Dr. Quinn, Medicine Woman and once famously claimed that he had been blacklisted by Hollywood after he "came out" in 1996, has signed on for General Hospital: Night Shift in a guest-starring role.Over the course of three episodes, the first airing Sept. 23, Allen will play Eric, a patient in need of a liver transplant, and who develops a relationship with first-year resident Kyle (played by Adam Grimes) while undergoing treatment."We're delighted to have Chad join our show because not only is he a remarkable actor, he's an amazing activist," says NS head writer Sri Rao. "I welcome the honesty authenticity that he will bring to our show."Allen's other TV credits include guest gigs on Criminal Minds, Charmed and NYPD Blue. Matt MitovichMore soaps news: Days Taps Gary Tomlin to Replace Ed Scott All My Children Looks for a Few Good Men Have Soaps Finally Gone Color-blind?