This Sunday’s Hi-de-Hi! event at the museum is sold out.
But Jeff Holland , who played Spike in the hit BBC comedy, will hold a free Q&A from 3pm to 4pm.
He has released his biography, The First Rule of Comedy, with co-author and comedy historian Robert Ross.
Museum trustee Tony Tarran said: “This is for people who maybe could not come to the event as it is sold out or who did not hear about the event, and it will be free entry.”
Other confirmed guests for the sold-out event include Su Pollard, who played Peggy Ollenrenshaw in the show, David Webb and Vince Rayner.
The event will take place Sunday 26th April from 10am to 3pm, including screenings of clips and rarities.