Several factors contribute to the difficulties in searching for Victorian actors. Using a stage name is the most obvious. Professional name and 'real' surname for some appear to have been interchangeable on official documents seemingly at whim. Then there is mobility. Theatre actors didn't often stay in the same venue for more than a few weeks at a time which, if they had a fairly common name, makes looking for them on a census a long winded process. If you do manage to track them down they're often listed at the end of the household as 'Vistor' or 'Boarder' on their own and the link broken to the rest of their family. As if that wasn't bad enough there are the age discrepancies. Of course that can be a problem with any ancestor, transcription errors and mistakes occur regularly but with actors we have the added complication of a desire to appear a different age to their actual age. Usually younger.