Alex Klein
From Tardis Wiki, the free Doctor Who reference
Alex Klein was a UNIT operative assigned to Prime Minister Harriet Jones during the Guinevere One expedition to Mars, he was with her when she was teleported aboard the Sycorax ship. Her premiership crumbled when the Doctor whispered to Alex, "Don't you think she looks tired" - six words that began a chain reaction leading to her downfall. (DW: The Christmas Invasion)
