Rachel enlists Lily’s help with an important task in order to further her mother’s medical research into a cure. Meanwhile, Zach learns surprising information from his CDC colleague and former lover.
| Name | Type | Role | |
|---|---|---|---|
| Patrick Breen | Guest Star | Agent Kermit Rimland | |
| Phillip Shinn | Guest Star | Thomas Marling | |
| Linda Emond | Guest Star | Lisa Quinto | |
| Jefferson White | Guest Star | Clem | |
| Alex Boniello | Guest Star | DJ Perfect Dan | |
| Ben Shenkman | Guest Star | Baccarin | |
| Richard H. Blake | Guest Star | Charles McClurge | |
| Michael Urie | Guest Star | Josh | |
| Ashley Austin Morris | Guest Star | Camille | |
| Ryan Spahn | Guest Star | Joel | |
| Woodlene Alexis | Guest Star | Eva | |
| Jennifer Mudge | Guest Star | Catalina | |
| Robert King | Executive Producer | ||
| Michelle King | Executive Producer |