"I'm so old people will say, `Is he still alive?'"

That's Roger Rees exaggerating people's response to his arrival in San Francisco with his one-man show What You Will, an evening of Shakespeare, stories about Shakespeare and about performing Shakespeare, that begins performances today (July 18) at the American Conservatory Theater.

The Welsh-born Rees, 64, is one of those extraordinary actors who can seemingly do anything. He won a Tony Award in 1982 for his work in the Royal Shakespeare Theatre's production of The Life and Adventures of Nicholas Nickleby, a gargantuan, two-part undertaking in which Rees played the leading role. He's also familiar from his many TV appearances – Robin Colcord on "Cheers," Lord John Marbury on "The West Wing" and more recently, Dr. Colin Marlow, the surgeon who patted Cristina Yang's ass on "Grey's Anatomy."

Rees also co-wrote, with his partner, Rick Elice (co-writer of Jersey Boys) a hit comedy thriller called Double, Double (which ran for a year in London's West End with Rees starring opposite Jane Lapotaire), and he ran the Williamstown Theatre Festival in Massachusetts for three years.

As previously stated, the man can do just about anything.