Cavanagh’s only scenes in the episode were with Grant Gustin and then more recent additions to the cast Kayla Compton (Allegra) and Brandon McKnight (Chester).
Cavanagh exited in an episode where Danielle Panabaker and Carlos Valdes didn’t even appear as Caitlin and Cisco, so we didn’t get to see them say goodbye.
One thing about the exit that did shock me and has me a bit suspicious is the manner in which Tom Cavanagh was seemingly written off The Flash.
For an actor who has been a key element to the series since its beginning, there was something strange about his final episode being one where much of the central cast wasn’t even present.