Info derived from the imdb. Only roles 2013-on noted. All known cast members noted.
Marilyn Burns (Sally): died in 2014; in Sacrament (2015), Texas Chainsaw 3D (2013); In a Madman's World (nd) in post-production.
Allen Danziger (Jerry): no other known acting roles, as self in 2000.
Paul A. Partain (Frankolin): died in 2005.
William Vail (Kirk): last known acting role in 1988, as Set Decorator in 2012.
Teri McMinn (Pam): last known acting role in 2012; Awakening (2016) in pre-production; as Self: The Texas Chain Saw Massacre: Off the Hook with Teri McMinn (2014).
Edwin Neal (Hitchhiker): in Red on Yella, Kill a Fella (2015), Halloween: Harvest of Souls 1985 (2013); The Mangled (nd) in pre-production.
Jim Siedow (Old Man): died in 2003.
Gunnar Hansen (Leatherface): died in 2015; in Texas Chainsaw 3D (2013); The Totem (2015) in pre-production; as Original Writer, pre-production: Death House (2016); as Self: Groovey.TV's Celebration of Badassery Interview Series (1 episode 2014), Summer Colony (2013).
John Dugan (Grandfather): in The Hospital 2 (2015), Bite School (2015), The Boogeyman (2014), In the Pines (2013), The Hospital (2013), Texas Chainsaw 3D (2013); William Froste (nd), The Mangled (nd), Rock Paper Dead (2016) in pre-production; Book of Ash (2015) announced; as Self: The Texas Chain Saw Massacre: Grandpa's Tales - An Interview with John Dugan (2014), Moviecops (4 episodes 2013); as Self, post-production: Horror Icon: Inside Michael's Mask with Tony Moran (2016).
Robert Courtin (Window Washer): died in 1985.
William Creamer (Bearded Man): last known acting role in 1984.
John Henry Faulk (Storyteller): died in 1990.
Jerry Green (Cowboy): no known subsequent acting roles.
Ed Guinn (Cattle Truck Driver): in Sacrament (2015).
Joe Bill Hogan (Drunk): no other known acting roles.
Perry Lorenz (Pick Up Driver): only known subsequent acting role in 2012.
John Larroquette (Narrator): in The Librarians (13 episodes 2014-2015), The Brink (7 episodes 2015), Almost Human (1 episode 2014), Deception (9 episodes 2013); F.Y.D. (2015) completed; Camera Store (2016) filming; as Self: Today (1 episode 2015), Kevin Pollak's Chat Show (1 episode 2013).