Fanmail.biz

I sent a request some time last year to Mac McDonald at the address in the database (Roger Carey Associates) but I got a RTS.
Does anyone have an up to date address for him?
I am trying to get my dads Red Dwarf DVD covers signed by the cast.

Any help would be apreciated.
Thank you in advance!

There was a different address scribbled on the bottom of the RTS envelope
Does anyone have any idea if this would work?