5. Juliet Is Emma Frost
Juliet Burke is the blonde bombshell introduced to us at the start of season 3 of Lost. She is embedded with the others, and we learn that she is a crucial part of this antagonistic group, has an icy arrogance, and can be ruthless when it suits her needs. She leaves the others when she falls for the handsome and charismatic leader of the survivors of the plane crash, even though he is kinda with someone. Despite switching sides and repeatedly proving herself, she is never completely trusted by the new group, and Jack repeatedly vouches for her. Emma Frost is the blonde bombshell introduced to us as the White Queen of the Hellfire Club. She is an integral part of this villainous team, has a vain arrogance, and is ruthless about getting what she wants. She leaves the Hellfire Club and falls for the handsome and disciplined leader of the X-Men, even though he's married. Despite switching sides and repeatedly proving herself, she is never fully trusted by team members, and Cyclops repeatedly vouches for her.