Famous faces will make an appearance at a charity race night.
Lookalikes of celebrities including Sir Sean Connery, George Clooney, the Queen, the Prince of Wales and David Jason will be at Fontwell Park near Arundel, on Tuesday.
Proceeds will go towards the appeal to raise £1 million for a new MRI scanner at St Richard's Hospital in Chichester.
Organising the event is actor Ray James, who will be turning up as Alf Garnett.
He said: "We shall be mixing and mingling - entertaining people and making it a good evening.
"Alf Garnett is bound to insult everyone and get paralytic, Sean Connery will charm all the ladies and Del Boy will try to sell them dodgy watches."
MRIs are diagnostic machines which produce detailed images of the body.
These help doctors detect, diagnose and assess a huge variety of diseases and injuries, ranging from cancer and strokes to back pain, sports injuries and circulation problems.
The first race in the six-race meeting is at 5.30pm and the last at 8pm.
Members' enclosure badges, at a special offer price of £12.50, are available from St Richard's fund-raising office on 01243 788122 ext 3205.
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