Masters of Sex Inventory (2013–2016) Online
- Original Title :
- Inventory
- Genre :
- TV Episode / Drama / Romance
- Year :
- 2013–2016
- Directror :
- Jeremy Webb
- Cast :
- Michael Sheen,Lizzy Caplan,Caitlin FitzGerald
- Writer :
- Michelle Ashford,Thomas Maier
- Type :
- TV Episode
- Time :
- 58min
- Rating :
- 7.9/10
Masters and Johnson turn to new partners in an effort to put the past behind them and focus on their expanding clinic. Given their fractured triangle, Libby reevaluates her relationship with Bill and Virginia.
| Episode cast overview, first billed only: | |||
 | Michael Sheen | - | Dr. William Masters |
 | Lizzy Caplan | - | Virginia Johnson |
 | Caitlin FitzGerald | - | Libby Masters |
 | Annaleigh Ashford | - | Betty DiMello |
 | Niecy Nash | - | Louise Bell |
 | Kevin Christy | - | Lester Linden |
 | Betty Gilpin | - | Dr. Nancy Leveau |
 | John Billingsley | - | Dr. Lloyd Madden |
 | Isabelle Fuhrman | - | Tessa Johnson |
 | Jaeden Martell | - | Johnny Masters (as Jaeden Lieberher) |
 | Rich Sommer | - | Dale Connolly |
 | Erin Karpluk | - | Darleen Connolly |
 | Jack Laufer | - | Herb Spleeb |
 | Alex Weed | - | Kevin |
 | Jeremy Strong | - | Dr. Art Dreesen |