Mark Watney is played by Matt Damon
Melissa Lewis is played by Jessica Chastain
Rick Martinez is played by Michael Peña
Alex Vogel is played by Aksel Hennie
Beth Johanssen is played by Kate Mara
Chris Beck is played by Sebastian Stan
Venkat Kapoor is played by Chiwetel Ejiofor
Teddy Sanders is played by Jeff Daniels
Mitch Henderson is played by Sean Bean
Annie Montrose is played by Kristen Wiig
Mindy Park is played by Mackenzie Davis
Rich Purnell is played by Donald Glover