Complex sentence: Alexander also appeared with Kelsey Grammer in the 2004 musical adaptation of Charles Dickens' "A Christmas Carol", playing Jacob Marley to Grammer's Ebenezer Scrooge.
Split into simpler sentences: Alexander also appeared with Kelsey Grammer in the 2004 musical adaptation of Charles Dickens A Christmas Carol. He played Jacob Marley to Grammer's Ebenezer Scrooge.