Info derived from imdb. Only movies/shows 2012-on noted by name. Only actors in 5+ episodes noted. Only original Bionic Woman series cast noted for now.
Six Million Dollar Man
Lee Majors (Steve Austin): in Toxin: 700 Days Left on Earth (2015), Do You Believe? (2015), AXI: Avengers of eXtreme Illusions (2 episodes 2015), The Gift (2014), The Legend of DarkHorse County (2014), Raising Hope (2 episodes 2013-2014), Dallas (3 episodes 2013), Matt's Chance (2013), CSI: NY (1 episode 2012), Crash & Burn (2012), Spring Break '83 (nd) completed; Almosting It (2015) in post-production; The Unknown Son (nd) announced; as Self: The Five (1 episode 2013), Fashion News Live (1 episode 2013); as Self, filming: The Time Machinists (2015).
Richard Anderson (Oscar Goldman): last known acting role in 1998; as Self: Anatomy of a Film (2014), Talent Watch (1 episode 2013), Beyond the Marquee (1 episode 2012); as Self, post-production Classic Hollywood Cinemas (2015).
Martin E. Brooks (Dr. Rudy Wells): last known acting role in 1996, as Self in 2011.
Lindsay Wagner (Jaime Sommers): in Warehouse 13 (3 episodes 2012-2014), The Thanksgiving House (2013), Who Killed Soul Glow? (2012), Scruples (2012); Wi Na Go (2013) completed; as Self: Mama Mae: The Life and Music of Mae Boren Axton (2015), Wonder Women! The Untold Story of American Superheroines (2012).
Alan Oppenheimer (Dr. Rudy Wells): in Adventure Time with Finn & Jake (1 episode 2014), Foxcatcher (2014), Shin hikari shinwa: Parutena no kagami (2012 video game); as Self: TV's Nastiest Villains (2014), Toy Masters (2012).
Quinn K. Redeker (various): in Big Miracle (2012); Toilet Talk (nd) in pre-production; as Writer, announced: Manifest Destiny (nd).
Than Wyenn (various): died in 2014.
The Bionic Woman
Lindsay Wagner, Richard Anderson, Martin E. Brooks, Lee Majors: as above
Ford Rainey (Jim Elgin): died in 2005.
Sam Chew Jr. (Mark Russell): last known acting role in 1998.
Jennifer Darling (Peggy Callahan): Final Fantasy Type-0 HD (2015 video game), Care Bears: Welcome to Care-a-Lot (1 episode 2012).
Martha Scott (Helen Elgin): died in 2003.
Christopher Stone (Chris Williams): died in 1995.