Trying to get to sleep, I came up with:
Richard Chaves -> the guy who plays Harrison -> Catherine Disher -> Geraint Wyn-Davies -> Keifer Sutherland -> Alex Winter -> Keanu Reeves -> Brian Blessed -> Colin Baker
But Jon pointed out a convenient Highlander guest star:
Richard Chaves -> Adrian Paul -> Denis Lill -> Peter Davison -> Colin Baker
Brilliant!
Now let me try Sir Ian McKellen, in a live demonstration:
Sir Ian McKellen -> Patrick Stewart -> Michelle Forbes -> Jamie Bamber -> Paul McGann -> Steven Mackintosh
Hey, that was easy!!!
NO ONE IS SAFE!!!
ETA: From Jon:
Kevin Bacon -> John Cleese -> Sylvester McCoy -> Colin Baker -> Rupert Booth -> Jon Blum -> Kate Orman
Richard Chaves -> the guy who plays Harrison -> Catherine Disher -> Geraint Wyn-Davies -> Keifer Sutherland -> Alex Winter -> Keanu Reeves -> Brian Blessed -> Colin Baker
But Jon pointed out a convenient Highlander guest star:
Richard Chaves -> Adrian Paul -> Denis Lill -> Peter Davison -> Colin Baker
Brilliant!
Now let me try Sir Ian McKellen, in a live demonstration:
Sir Ian McKellen -> Patrick Stewart -> Michelle Forbes -> Jamie Bamber -> Paul McGann -> Steven Mackintosh
Hey, that was easy!!!
NO ONE IS SAFE!!!
ETA: From Jon:
Kevin Bacon -> John Cleese -> Sylvester McCoy -> Colin Baker -> Rupert Booth -> Jon Blum -> Kate Orman