What actors and actresses appeared in The Memory Spy - 2010?

The 2010 film you're referring to is likely "The Memory Thief".

There seems to be no film called "The Memory Spy" released in 2010. However, "The Memory Thief" was a film released in 2010 starring:

* Michael Rooker as Ben

* Jonathan Tucker as Thomas

* Natasha Henstridge as Emily

* Michael Madsen as Mr. Smith

* Erin Cummings as Jane

* Patrick Bauchau as John

Let me know if you had a different film in mind!