The reason for the relay is voltage drop in the starter circuit. Because of the usually long length of cable from the starter to the control panel the voltage drop in the cable can be enough to prevent the solenoid from engaging fully. The result is a click and nothing else when you press the starter.
The Flash Interview: Danielle Panabaker On Why Killer Frost is Fascinated By Barry's Body. Danielle Panabaker, who plays Caitlin Snow in The Flash, has a new interview up on The CW's social media channel, explaining just why she's so interested in The Flash's body. The scientist in Caitlin is excited to know everything that's going on in Barry's body, Panabaker said. Sheâs smart. Sheâs beautiful.
CWâs âThe Flashâ Casts Original Showâs Heroine. CWâs âThe Flashâ has brought back Amanda Pays to play Dr. Tina McGee, the role she played in the original live-action version of the superhero drama. Pays joins John Wesley Shipp, who played lead Barry Allen/The Flash in the first series and who plays the characterâs father in the reboot.