You can go back to the '70s to see Madeleine in guest roles of iconic hits like Baretta, The Amazing Spider-Man, and Barnaby Jones. During the '80s there were spots on Little House on the Prairie and Trapper John, M.D. In the '90s she had an amazing career on the big screen before heading to the Hamptons for some Revenge.
We first remember Gabriel from a guest appearance on ER. Then there was a guest spot on the short lived Fantasy Island reboot. Much later he was Arthur Case on Mad Men and even the voice of Bruce Banner on The Avengers: Earth's Mightiest Heroes.
Back in the late '90s, Nick was Kevin "Trek" Sanders on Team Knight Rider. Sci-fi fans may remember him as Kyle Valenti on Roswell. He also had guest spots on Malcolm in the Middle, Crossing Jordan, Tru Calling, Vanished, Terminator: The Sarah Connor Chronicles, and Without a Trace before finally running a bar and pining over Emily in the Hamptons.
Henry had a string of guest appearances in the '80s and '90s on shows like Night Heat, Rin Tin Tin: K-9 Cop, Top Cops, Street Legal, Secret Service, and Kung Fu: The Legend Continues. Later you may have spotted him on CSI, Ghost Whisperer, The Tudors, Monk, and TNT's current sci-fi hit Falling Skies before becoming the diabolical Conrad Grayson on Revenge.