| | | | PART 1 - OUTSIDERS |
| | | | "Walkthrough" |
| | Ana | Green | Wife in wheelchair |
| | Reid | Green | Husband |
| | Vera | | Real Estate Broker |
| | Charlie | Green | Baby daughter of Ana and Reid |
| | Thomas Emile | Janebridge | Designed and built building |
| | Frederick | Olmsted | Designed Central Park |
| | Frank | | Former landlord |
| | DelGrossos | | Babysitter of Charlie |
| | | | "Riptide" |
| | Preston | Treadwell | Wrote book about apt bldg |
| | | | "Loose" |
| | Georgia | Okeefe | Ana's physical therapist |
| | Claudia & Isobel | | Book "Blood Rink" book characters |
| | Kay | Dalton | Narrator of book "Blood Rink" |
| | Cathy | Stillson | Ana's Mom |
| | | | PART 2 - INSIDERS |
| | | | "Adjustments" |
| | Dr. Bronson | | Charlie's pediatrician |
| | | | "Maintenance" |
| | Smiler | | Concierge in building |
| | Gremlin | | Elevator operator |
| | | | "Neighbors" |
| | Mrs. Jacobs | | Emaciated neighbor with baby |
| | | | "Help" |
| | Detective Hauck | | Police Department |
| | Miss Varne | Camilla | Resident - Actress |
| | | | "A Very Bad Day" |
| | Michael | | Georgia's brother |
| | | | "A Very Bad Day II" |
| | The Hasids | | Jewish Organization |
| | Wanda | | Retired secretary at Reid's Office |
| | Morgan | Loeffller Esq | Reid's boss |
| | | | "Old Habits" |
| | Winston | Terry | Famous resident of building from 1970's |
| | Jann | Wenner | Reporter who interviewed Winston sent resignation letter |
| | | | "The Bughouse" |
| | Roscoe | | Bedbug sniffing dog |
| | Sammy | | Clerk at hardware store |
| | | | "A City Interlude - Frank" |
| | Tucker | | Character who opines on society |
| | Francis | Gardner Jr. | Frank's given name |
| | | | PART 3 - UPSTAIRS DOWNSTAIRS |
| | | | "From the Depths" |
| | Christopher | | Friend of Camilla - Wears brown suit and drinks a lot |
| | | | "Nickel Tour" |
| | Leonora | | Camilla Varne's granddaughter, also an actress |
| | | | "The Courtyard" |
| | Sterling | Jackson | Author |
| | Arnold | Dulcina | Theater critic |
| | Teddy | Wilcox | Former NY senator |
| | Carl | Reese | Retired pitcher of Yankees |
| | Poppy | Loudon | Olympic gymnast |
| | | | "A City Interlude Bizzie" |
| | Bizzie | | Prisoner on parole |
| | Dogan | | Bizzie's host for the evening |
| | | | PART 4 - BIRTHDAY |
| | | | "Party" |
| | Kacey | | Birthday Party |
| | Steve | | Birthday Party |
| | Eliot | | Birthday Party 3 years old |
| | Donna | | Birthday Party 3 months old |
| | Matthew | | Birthday Party |
| | Brian | | Birthday Party |
| | Marlena | | Birthday Party child |
| | Felix | | Birthday Party |
| | Audra | | Birthday Party |
| | Lissa | | Birthday Party 4 years old |
| | Mark | | Birthday Party |
| | Jessica | | Birthday Party |
| | Ezra | | Ezra 2 years old |
| | Derek | | Birthday Party |
| | Erin | | Birthday Party |
| | Gemma | | Birthday Party |
| | Bethany | | Birthday Party |
| | Xanthe | | Bethany's wife couldn't come to party |
| | Liam | | Birthday party 6 months old |
| | Emma | Bradley | Author of book Blood Rink |
| | | | "Pushover" |
| | Marla | | Frank's ex-wife |
| | | | "Meetings" |
| | Harry | Rosemund | Jewelry store owner |
| | Isaac | Blau | Hasidic friend of Reid |
| | | | "Running" |
| | Cop in Apt | | Called by Ana |
| | | | PART 5 - BIRD'S NEST |
| | | | "Vampires" |
| | Dziadu | | Man-thing monster |
| | | | "Counsel" |
| | Akiva | | Mitzvah Tank works with Isaac |
| | Mendy | | Works the Mitzvah van |
| | Rebbe | Schneerson | Picture on side of van |
| | Benjamin | | Isaac's dead son |
| | | | "Terra Firma" |
| | Lilith | | Adam's first wife |
| | | | "Neighbors II" |
| | | Mr. Jacobs | Mrs. Jacob's husband, woman was insane |
| | | | "Utility" |
| | | Dinkins | Mayor of New York City 40's |
| | Carlo | | Friend of Frank, works at ConEd |
| | Paul | Russell | ConEd rep works at building |
| | | | "Mothers Gifts" |
| | Manny | Langan | Doorman at Keene Apts. |
| | | Mrs. Engstrom | Lives at Keene Apts. with dog Sweetie |
| | | | "A City Interlude - Ana" |
| | Lucy | Nguyen | Spokeswoman NYPD |
| | Ruth | Carville | Struck by debris from building collapse |
| | Lt. Clayton | Harrison | Policeman on scene at building collapse |
