Spoiler Alert: The following story contains details from Tuesday’s episode of The Flash.

It was the end of an era on Tuesday’s episode of The Flash, as the CW series said goodbye to original cast member Carlos Valdes and his tech whiz character, Cisco Ramon.

At the beginning of the episode, titled “Good-Bye Vibrations,” Ramon arranges for a meeting with his Team Flash colleagues, Barry Allen (Grant Gustin) and Dr. Caitlin Snow (Danielle Panabaker), to announce that he and his girlfriend Kamilla (Victoria Park) will be leaving Central City. Both express their readiness, at this stage of their lives, for a new chapter. For Kamila, that means traveling to Miami to put on a gallery show. For Allen’s best friend Cisco, it means taking over Chip Cooper’s (Donny Lucas) job as the Director of Technology and Science of A.R.G.U.S., after Chip leaves to take another gig.