- Michael Sheard - Dr. Koettlitz
- Frank Duncan - William Beardmore
- Richard Steele - Captain England
- John Roden - Porter
- Roland Oliver - Scottish Porter
- Neil Stacy - Robert Scott
- Geoffrey Chater - Sir Clements Markham
- Raymond Adamson - R.G.S. Member
- Benjamin Whitrow - Roald Amundsen
- Kevin Whately - Jameson Adams
- Andrew Seear - Eric Marshall
- Leslie Schofield - Ernie Joyce
- Victoria Fairbrother - Emily Dorman
- Victoria Fairbrother - Emily Shackleton
- John Drake - Professor Edgeworth David
- Brian Orrell - Douglas Mawson
- Sam Davies - Captain Evans
- Maurice Quick - Mayor
- Timothy Morand - Dr. Edward Atkinson
- Howard Lee - Newsboy
- Athene Fielding - Kathleen Scott
- Robert Lang - Major Darwin
- Robert James - Sir John Scott-Keltie
- Anthony Bate - Lord Curzon
- Ivor Roberts - Jacobsen
- Joanna Phillips-Lane - 1st Girl
- Jiggy Bhore - 2nd Girl
- John Watts - Frank Worsley
- Peter Dahlsen - Frank Hurley
- Leonard Maguire - Harry McNeish
- John Wheatley - Percy Blackborrow
- John Flanagan - Tom Crean
- Martin Howells - Alexander Macklin
- Howard Bell - Sorlle
- Steve Plytas - Whaling Skipper
- Adam Clapham
- John Harris
- Michael Treen
- Maggie Stevens
- Francis Shaw
- Ron Edmonds
Michael Hayward interpreta a ‘Putty’ Marston en la serie.
David Schofield interpreta a Sir Ernest Shackleton en la serie.
David Rodigan interpreta a Frank Wild en la serie.
Capítulo disponible en las siguientes plataformas:
