10 Best One-Time Characters In Red Dwarf

10. Lister's Confidence

When Dave Lister contracts a unique form of pneumonia, the mutated virus causes hallucinations that physically appear all over the ship. Among these is the spontaneously combusting Mayor of Warsaw, leading Rimmer to cynically remark, "it really is going to be one of those days, isn't it..."

But the real pièce de résistance of Lister's creations are the corporeal embodiments of his confidence and paranoia. Confidence is smooth-talking and charismatic with a garish chequered suit, taking the form of a game show host Lister associates with confidence. Paranoia, on the other hand, is gaunt, miserable and spiteful.

As Lister bonds with the former of the two, their shenanigans take them outside the ship for some space dancing. Confidence then reveals that he killed Paranoia and smashed the medical unit to prevent Lister from receiving treatment (and erasing him from existence).

He then dares Lister to take his helmet off, and when Lister refuses, he casually goes first to demonstrate - which results in him blowing up.

Played by Craig Ferguson, Confidence is an unprecedented burst of energy in the series's first season, and likely paved the way for the equally memorable guest appearances in the future.