A close-up of Rob from 782: Desecration
|First appearance||276: Fixed Width|
Rob is a stick figure in xkcd. Rob has no identifying features and appears as a generic stick figure, visually indistinguishable from Cueball. He is one of the few of Randall's characters to be given a name. Rob is specifically named in 276: Fixed Width, 632: Suspicion, 647: Scary, 716: Time Machine, 723: Seismic Waves, 782: Desecration, 838: Incident, 1102: Fastest-Growing and 1168: tar. In 276: Fixed Width his screen name appears as "rob", and in 723: Seismic Waves he is posting on the internet as "robm163". In 838: Incident his username appears as "robm".
Rob had a relationship with a "woman" known as <emily> on IM. This ended tragically in 276: Fixed Width when he told her the relationship was only for sex while he wasn't really paying attention to what he was writing; he just wanted their chat responses to line up nicely on the screen. Two years later, in 2009, he had a relationship of a few months with what ended up to be a spam bot. He discovered this when he asked the bot to pass a Turing test. This happened in 632: Suspicion.
In 647: Scary we find that he has a nephew born after September 11, 2001, but by 2009 he was old enough to have discussions with Rob about it.
In 1102: Fastest-Growing it seems that Rob is Black Hat's room mate. This could indicate that the Robert in 596: Latitude could be Rob, and that it actually is the Cueball shown in that comic. Similarly this could indicate that the Cueball coming home in 542: Cover-Up to Black Hat, could be Rob. But with no name mentioned it is not enough to list these comics as comics featuring Rob.
 See also
- Category:Comics featuring Rob
- Category:Comics featuring Cueball
- It was at some point suggested that Cueball and Rob should be merged. But nothing came of the discussion.