<P> The robot, which is actually a human in a robot costume, is a form of comic relief and offers one line insults ("zings") to each of the house guests in an annoying, mechanical sounding voice . Each insult is followed by the comment, "Zing!", which has entered the popular lexicon, particularly within the house . </P> <P> Zingbot 3000 made its first appearance on Big Brother 12 during one of the Power of Veto competitions . The Zingbot 3000 also made a cameo appearance at the Big Brother 12 season finale . During Big Brother 13, its appearance coincided with a veto competition where the house guests raced to build the "Bride of Zingbot". In Big Brother 14, the theme was to build a Zingbot baby during one of the veto competitions . Zingbot 3000 attended Comic Con in 2011 . Zingbot re-appeared on August 28, 2013 during Big Brother 15 and on August 20, 2014 during Big Brother 16 . But on Big Brother 17, he got an upgrade, now named the "Zingbot 9000" which had much more brutal zings on August 26th, 2015 . Zingbot 9000 again appeared on August 17, 2016 during Big Brother 18, and it was announced that Zingbot had entered the presidential race . Zingbot 9000 re-appeared on August 23, 2017 during Big Brother 19, having won the presidency and being modeled after President Donald Trump . </P>

Who is in the zingbot costume on big brother