RSF sentry (Inferno Earth)

In a parallel universe visited by the Third Doctor, an unnamed RSF sentry was stationed at the Inferno Project.

The sentry shot down RSF Private Wyatt, who was on top of a tower, thinking that it was the Doctor. He was later stationed to guard the Doctor and the Primord-mutated John Bromley. However, he was attacked and killed by Bromley. (TV: Inferno)