CW's 'The Flash' Cast: Grant Gustin "Thanks" Candice Patton, Danielle Panabaker Before Finale!

There is only 1episode of The Flash left on the CW network. Before the season finale, after playing Barry Allen for 23 episodes, Grant Gustin wrote an open and heartfelt letter to his cast-mates, including Danielle Panabaker (Caitlin Snow) and Canidce Patton (Iris West) and the support from the fans.

In our previous recap, the Reverse-Flash revealed the future to Eddie (Rick Cosnett), where Iris married Barry and hyphenated her name, West-Allen. Knowing the scarlet speedster's identity, Iris joined the group as they tracked down Gorilla Grodd in the sewers, before he managed to escape into the city. Unable to untie himself, Eddie watched as Wells pulled the switch and reactivated the particle accelerator.

In our recent recap, with the countdown ticking, Barry had to transport his prisoners, such as Weather Wizard and Peek-a-boo, to Oliver's prison island. Unfortunately, Captain Cold (Wentworth Miller) was planning all along to sabotage the mission and let the prisoners escape. The Flash didn't have to worry about fighting the Reverse-Flash alone, because Barry had Firestorm (Robbie Amell) and Green Arrow (Stephen Amell) giving his enemy an epic beatdown.

According to Comic Book, Gustin was an unknown actor landing his first regular series. And now The Flash is one of the CW's most watched show, thanks to huge praise from both fans and critics.

Well aware of his success, the former Glee actor posted a sincere letter for all to read on his official Facebook page.

After thanking everyone in the cast and crew, Gustin writes, " I realize that's a long list of people, but for me being relatively "new" to the business and having never been a regular a show before, getting to work with all of those actors and watching them help bring our show to life always made it feel like that much more of an authentic world to me. Those are some heavy hitters and bad ass actors on that list. SO i guesses I should also thank David Rapaport for bringing all of them to us and for jump starting this opportunity for me as well."

The Flash airs one last time on Tuesday 8pm on the CW.

Readers, what do you think of the letter?