Chris Ellis had previously played Deke Slayton in the film Apollo 13 (1995). He appears briefly alongside Nick Searcy who plays Slayton in this episode of the miniseries.
The "Signature Edition" DVD release of the miniseries has the wrong set of closing credits for the episode. The sequence that appears is from episode six instead.
Chris Kraft is shown stating that no one will remember the last two men to walk on the moon. Gene Cernan is shown stating that he was the last man to walk on the moon. Thanks to an excellent documentary by Cernan, which was completed shortly before his passing, there is a response to both statements. The title of Cernan's documentary (which is almost completely about himself, lest anyone forget) is The Last Man on the Moon (2014).