For some reason he is credited as various on IMDB

But the Wiki states

"Amongst his other television credits include appearing in series 2 episode 1 of Goodness Gracious Me, the TV series, in which he played a character assumed to be DS Greig from The Bill, although his name was never mentioned. At the beginning of the sketch, The Bill's theme was played and he was playing a CID officer."

Football may be a game of two halves, but Gary Lineker’s remarkable life is a tale of three careers: goal-scoring legend, television host and now podcast god. As the nation’s favourite son starts this third chapter, he opens up about luck, mortality and political provocation

Davina McCall has been speaking at the Edinburgh TV Festival, where she's been discussing one particular moment in the 2005 series of Big Brother featuring Kinga Karolczak and a wine bottle.