Unusually, the names of all the supporting cast (7 true Darians and 20 survivors) are included on the call sheets (most call sheets similarly name "CROWD" or "A N OTHER").
While there are 14 true Darians, we only see 11 of them: Neman and Kara, the two suited Darians played by Alan Meacham and Michael Boothe, plus the 7 others below.
Thanks to Conrad Turner for identifications.
Tara Faraday (white dress) and Linda Hooks (blue dress; she also works in the Transplant Room). Both returned to the series a few episodes later for guest roles in The Last Enemy.
In lavender, this is Richard Smith encountering the survivors.
In green, this is Sean Hopwood.
In light brown, this is Jeremy Ranchev. The only supporting Darian with a line: "Neman, the survivors have broken in!"
In red, Carl Bohun is stunned by Paul. (Bohun is in this scene, 62A, and doesn't appear elsewhere).
The Transplant Room Darian here (between Bergman and Koenig). The call sheets list Linda Hooks and two Darians, Sean Hopwood and Jeremy Ranchev, but we only see the one male Darian here who doesn't look like either, and wears a red tunic). Possibly this is Alan Meacham stepping in, but he looks older.
There is an additional Darian, Chris Hodge (perhaps not the same actor credited in imdb with a small Monty Python role). He only appears in the Darian Control Center scenes. In earlier scenes, we see Hopwood and Ranchev sitting at a table. When the survivors enter, we see a Darian in a red tunic thrown off camera (possibly this is stuntman Les Crawford), and we see Smith is one of the male hostages, with possibly Ranchev lying on the floor. Hopwood comes in with Neman. Stuntman Marc Boyle doubles for Neman when he is thrown through the gene bank.
In addition to the High Priest (called "Old man" in the script and call sheets) played by Aubrey Morris, Hadin played by Robert Russell, and the two mutes (Gerald Stadden and Jackie Horton), there are 20 other survivors, 12 men and 8 women.
The big bearded survivor is Ron Tarr
On the right is Allan Travell.
Stuntman Terry Plummer
On the right, Dan Long
Stuntman Joe Dunne in the foreground here, with Ron Tarr and Bill Hemmings behind.
Stuntman Nick Hobbs (later to play Clive Kander in The Bringers Of Wonder). In the episode he is normally at the side of the frame or in the distance, often out of focus, until the fight with Morrow and Carter.
James Muir in the centre here.
On the left is Robin Hopwood, on the right Valerie Phillips
On the right, Jenny Cresswell, regularly an Alphan in Year 2
In the centre foreground, Rosalynd Bailey
On the left, this may be "Theo Hayman", who resembles the actress Carole Hayman (imdb)
The next may be "Nina Kitchen", who was an dancer (no imdb)
Others are Jennifer Guy and Jenny Cresswell
Other non-identified actors include Mel Warner, Michael Dilks, Maxwell Alford, Tony Waldern, Warren Black and Trevor Lawrence for the men. For the women, the two not listed above are Laurie Davis (often an Alphan, but not recognised here) and Jacky Clair.
This Survivor later became an Eagle pilot
Copyright Martin Willey.