What actors and actresses appeared in Add-On Alan... with Alan Partridge - 1997?

There's no record of a 1997 TV show or film titled "Add-On Alan... with Alan Partridge". It's likely you're thinking of another Alan Partridge project.

Here are some possibilities:

* "Knowing Me, Knowing You" (1994-1995): This was the original series that launched Alan Partridge's career. It starred Steve Coogan as Partridge, along with other actors like Felicity Montagu as Lynn, and Simon Day as Michael.

* "I'm Alan Partridge" (1997-2002): This series featured the character in a different setting as a radio presenter. Again, it starred Steve Coogan with a supporting cast including Felicity Montagu, Simon Day, and Susannah Fielding.

* "Alan Partridge: On the Move" (2002): This was a short-lived spin-off series that featured Alan attempting to launch a career in television. It starred Steve Coogan and Felicity Montagu.

If you can provide more information about the specific program you're interested in, I can give you a more accurate answer!