The sky is full of ships -- enormous motherships from seemingly benign, very attractive humanoid aliens who just want to trade a lot of advanced technology for a little water -- but whatever you do, don't trust them....
About the characters and their storylines ( a lot of spoilers ) ...
Single mother with one teenaged son, Erica is with the FBI's Counter-Terrorism Division, and is based in Los Angeles. Currently on the trail of a sleeper cell that has forged suspiciously accurate documents with suspiciously WASPy names, Erica finds her life interrupted when alien motherships appear over 29 major cities of the world. Assuaged when the humanoid inhabitants appears to be completely friendly, Erica shifts her focus back to her job and her troubled son and in so doing uncovers a shocking and massive conspiracy... 38 years old
Jack Lowery father
Catholic priest, Father Jack is the assistant pastor at All Saints Church in Los Angeles, a parish that has seen its ranks of followers dwindle to almost nothing. On the verge of being reassigned, Father Jack sees a renaissance of faith when the Visitors arrive, as fallen-away Catholics return to church in droves, initially fearful of this brave new world. Unimpressed by the surge of hope and devotion that follows the arrival of the Visitors, Father Jack fears that his parishioners are relating to the aliens as god-substitutes... 30 years old
An Anderson Cooper wannabe, he's a newscaster with BBN, based in New York City. Amoral, ambitious, and a little slippery, Chad is intent on getting to the top of his profession in a big hurry. The kind of man who sleeps with the Vice President's press secretary in order to gain entree, Chad gets the Ultimate Source when he is tapped by Anna to become her steady outlet for information (propaganda) about the Visitors. Too ambitious to realize that he's going to become an unpaid sycophant, Chad doesn't question his good luck... 28 years old
The son of Erica Evans, Tyler is an uncool kid who wants to be cool -- or maybe he just wants to fit in, somewhere, anywhere. Deep in a state of teen angst, Tyler gets into trouble again and again, trying to crash parties where he is unwanted, and winding up in an ER. But when the visitors arrive, and Tyler's buddy Brandon ( enthralled by the Visitors and seems to have better luck getting "in" with them than Tyler is ) scores some tickets to visit the Los Angeles mothership, Tyler thinks that the aliens just might fill the empty hole in his life... 16 years old
Ryan is the boyfriend of Valerie Holt, and he's right on the verge of proposing marriage. But Ryan has a deep secret that he's kept from Valerie and from her daughter Cassie... 36 years old
Anna is the leader of the Visitors, and she's not only humanoid, she has flawless looks and a gorgeous figure. A woman who presents herself as a benevolent deity, with a soft-spoken tone of voice that is warm and soothing (but with a strangely harmonic tone), Anna is the front person for the aliens, and she's remarkably knowledgeable -- about human culture, human languages, and media manipulation. Expert at wrapping pundits around her little finger, she decides that newscaster Chad Decker is the perfect careerist to carry her message of peace and prosperity to a wider world… 40 years old
Stunningly beautiful. Strong. Charismatic. Duplicitous. Leader of the Visitors, an alien race, who has come to Earth seeking friendship with humanity -- or are they?
Latina/African-American/Caucasian/any ethnicity to be considered. Valerie is the single mother of Cassie; she's dating Ryan Nichols, and he's on the verge of proposing to her... 42 years old
Latina/African-American/Caucasian/any ethnicity to be considered. She's the daughter of Valerie Holt; her father is either dead or out of the picture. A hard-working student, she's soon to become the stepdaughter of Ryan Nichols...
17 years old
One of the Visitors, Lisa is a Guide aboard the Los Angeles mothership, a flirty girl who charms Tyler and Brandon with ease, welcoming them to the ranks of the devoted followers of the Visitors... 18 years old
Another Visitor, Marcus is Anna's second in command, her constant companion in public. He works together with Anna, working to propagandize the people of Earth into believing that the Visitors are peace-loving friends of all humanity... 40 years old
Hispanic, Erica's partner in the FBI Counter Terrorists Division and a close friend. Like Erica, he's spent years tracking a variety of sleeper cells in the Los Angeles area. He and Erica go undercover to penetrate the anti-Visitor resistance group.... 44 years old
He seems to be organizing a resistance group. So far, he's recruited "about 25 people." He approaches Ryan for information about the Los Angeles cell, though Ryan refuses to get involved, not wanting to put his fiancee and her daughter in danger. Apparently Georgie's organizing "again" which implies he's done this before, and the last time resulted in people being killed. Ultimately, he is assisted by Ryan who is revealed to be a Visitor himself ... 28 years old