| | | | Part 1 The Strangers |
| 1 | | | 116 Maple Street Sunday, July 4 |
| | Larry | Wilde | Gertie Wilde's son. |
| | Gertie | Wilde | A former beauty queen. Arlo Wilde's wife. aka: Gert. |
| | Arlo | Wilde | A former lead guitarist. |
| | Julia | Wilde | Gertie and Arlo's daughter. aka: Jules. |
| | Nirvana | | Rock band. |
| | Rhea | Schroeder | A college professor. Gertie's friend. |
| | Eileen | Fisher | American fashion designer and entrepreneur. |
| | Dominick | Ottomanelli | One of Arlo and Gertie's neighbors. aka: Dom. |
| | Steven | Pontis | One of Arlo and Gertie's neighbors. aka: Steve. |
| | Shelly | Schroeder | Rhea's daughter. |
| | Sai | Singh | One of Arlo and Gertie's neighbors. |
| | Nikita | Kaur | Sai's wife. |
| | Peter | Benchleys | A War Veteran. One of Arlo and Gertie's neighbors. |
| | Linda | Ottomanelli | Dominick's wife. |
| | Fred | Atlas | One of Arlo and Gertie's neighbors. |
| | Bethany | Atlas | Fred's wife. |
| | Ralph | | Fred and Bethany's dog. |
| | Dave | Harrison | Jane Harrison's son. |
| | Margie | Walsh | One of Arlo and Gertie's neighbors. |
| | Sally | Walsh | Margie's wife. |
| | | | Part 2 Slip 'N Slide |
| 2 | | | 118 Maple Street Friday, July 9 |
| | Charlie | Walsh | Margie and Sally's son. |
| | Fritz | Schroeder | Rhea's husband. |
| | Gretchen | | One of Rhea's daughters. |
| | Fritz Jr. | | Rhea's son. aka: FJ. |
| | Ella | | One of Rhea's daughters. |
| | Cat | Hestia | One of Arlo and Gertie's neighbors. |
| | | | Part 3 This Accident |
| 3 | | | 116 Maple Street Saturday, July 10 |
| | Cheerie | Maupin | Gertie's stepmother. |
| | Lainee | Hestia | Cat Hestia's daughter. |
| | Sam | Singh | Sai and Nikita's son. |
| | Michael | Ottomanelli | One of Dom and Linda's sons. |
| | Mark | Ottomanelli | One of Dom and Linda's sons. |
| 4 | | | Sterling Park |
| | Fluffy | | A cat. |
| 5 | | | 116 Maple Street |
| | Bernard | Herrmann | American composer and conductor. |
| | Oscar | Heep | Head office manager for Bankers Collective. |
| | Fred | Savage | American actor and director. |
| 6 | | | Sterling Park |
| | Brooke | Leonardis | One of Julia's acquaintances. |
| | Sienna | Muller | One of Julia's acquaintances. |
| | Billie | Eilish | American singer-songwriter. |
| | Ms. | Lopez | Julia's teacher. |
| | Jane | Harrison | A pre-school teacher. One of Arlo and Gertie's neighbors. |
| | | | Part 4 The Brick |
| 9 | | | Saturday, July 24 |
| | Jill | Pontis | Steven's wife. |
| | Marco | Pontis | One of Steven and Jill's sons. |
| | Richard | Pontis | One of Steven and Jill's sons. |
| | Tim | Harrison | Dave's father. |
| | Adam | Harrison | Dave's elder brother. |
| | Danny | Lasson | Arlo's friend. |
| 10 | | | Sunday, July 25 |
| | Denise | Hudson | One of a detectives. |
| | Gennet | | One of a detectives. |
| | Don | Bianchi | One of a detectives. |
| | Nick | Sloss | A criminal attorney. |
| | William | Shakespeare | English playwright, poet and actor. |
| 11 | | | Monday, July 26 |
| | Elsa | Lanchester | British-American actress. |
| 22 | | | 118 Maple Street Wednesday, July 28 |
| | Aileen | Bloom | A second-year PhD student. |
| | Bertrand | Russell | British philosopher and polymath. |
| | John | Barry | British composer and conductor of film music. |
| 23 | | | 116 Maple Street Wednesday, July 28 |
| | Ruby | Bridges | American civil rights activist. |
| 28 | | | Nassau Community College Saturday, July 31 |
| | Allen | | The chair of the English department. |
| | Miguel | Santos | One of Rhea's students. |
| | Debra | Lucano | One of Rhea's students. |
| | Tom | Mijares | One of Rhea's students. |
| | MaryJane | | Allen's wife. |
| | | | Part 6 The Monsters Arrived on Maple Street |
| 34 | | | Maple Street Sunday, August 1 |
| | Oscar | | Arlo's new acquaintance. |
| 38 | | | NYU Winthrop Hospital Sunday, August 1 |
| | Pranav | Kaur | One of Sai and Nikita's children. |
| | Michelle | Kaur | One of Sai and Nikita's children. |
| | Rich | Hestia | Cat's husband. |
| | Helen | Hestia | Rich and Cat's daughter. |
| 43 | | | 118 Maple Street Monday, August 2 |
| | Jessica | Sherman | A 13 year-old girl Rhea knocked unconscious at a cafe in Seattle. |
