'The Flash' EP and Mark Hamill on Harrison Wells Shocker, 'Star Wars' Shoutout

The Reverse-Flash mystery becomes even more complicated as the CW series explores "what really happened that night" Barry's mother died.
The CW

[Warning: this story contains spoilers for Tuesday's episode of The Flash, "Tricksters."]

The Flash played some major tricks in Tuesday's episode.

The CW series finally showed the epic fight between Barry (Grant Gustin) and Reverse-Flash the night Barry's his mother died, and it didn't end the way viewers expected.

See more 'The Flash': Every Major DC Character on The CW Series

The big surprise: when Reverse-Flash took off his mask, it was not Tom Cavanagh (Dr. Wells) underneath — it was The Flash newcomer Matt Letscher. The episode revealed that when Eobard Thawne (the true name of Reverse-Flash) traveled back in time and became stranded, he took over Harrison Wells' body. He assumed the scientist's identity so that he could build the particle accelerator sooner — all in an effort to get home.

The big episode also welcomed Mark Hamill, who reprised his role as The Trickster from the 1990 CBS Flash. The Star Wars star caused plenty of trouble for The Flash team when he enlisted his son (Devon Graye) to break him out of prison.

Hamill and executive producer Andrew Kreisberg answered burning questions about the episode at a recent press screening attended by The Hollywood Reporter, and Letscher revealed details of his role in a recent chat with THR.

What really happened to Wells?

Eobard Thawne used futuristic technology that the producers describe as "genetic camouflage" to rewrite his DNA to match Wells' DNA the night he died. "What happened to Harrison Wells' real body and what really happened that night and all of these things are going to start coming out," Kreisberg said.

Kreisberg teased that not all of Wells has been lost, noting that Thawne has often talked about Tess, Wells' fiancé, who died in the car wreck the night he took over Wells' identity. "One of the things that bled through is Wells' love for Tess, that Thawne absorbed when he absorbed his body," said Kreisberg.  

Read more 'The Flash' Eyeing Other Speedsters for Season Two

Tuesday's Thawne bombshell wasn't always part of the plan, with the writers figuring it out when they were working on explaining why the blood found at the murder scene of Barry's mother wouldn't be a match for Wells — as was revealed in episode 13. "We were talking about, 'well what if Wells wasn't wells? What if he stole Wells' body?" said Kreisberg.  

When will Letscher return as Eobard Thawne?

Letscher confirmed he will return later this season, but he isn't sure in what capacity. "They only trust me with the bare minimum, which is appropriate," joked Letscher. He said his role was so top secret that Kreisberg told him not to tell his friends or family.

Read more 'The Flash' Eyeing Mark Hamill's Trickster for Villain Teamup

What's the story behind that Star Wars reference?

Hamill got to deliver an iconic Star Wars line when he revealed he is the father to the younger Trickster.

"In rehearsal I said 'I am your daddy,' which got a big laugh at the table read," Hamill said. "I'm sorry I didn't give them the option in filming, because I think it would have been funny to self-parody the line. But it got a big laugh. If you're happy, I'm happy."

Hamill also revealed that he ad-libbed one of The Tricker's most ridiculous threats in the episode, when he screamed, "I'll cut of his head and throw it in his face."

"I had a professor in college who said, 'and if the papers are late, I will be forced to cut off your head and throw it right in your face,' " said Hamill. "That just stuck with me, the absurdity of it all. It's a violent image, and yet leavened by the humor of it being a physical impossibility."

What 90s Flash Easter eggs did viewers miss?

The episode marked a reunion for Hamill and John Wesley Shipp (Barry's father, Henry) who played The Flash in the original CBS series. There were other nods to the original show; when Henry visited STAR Labs, Shipp was wearing a trenchcoat from the original series, which he took on the last day of production.

"The warehouse on the outside was actually where James Jesse was hold up in the original show," Kreisberg revealed of The Trickster's lair.

In addition, the Mayor of Central City was played by Vito D'Ambrosio, who squared off against Hamill in the original Flash as Officer Tony Bellows. The costume department also painstakingly recreated Hamill's original Trickster outfit to adorn a mannequin in his lair.

But Kreisberg said they didn't just want to make this episode all about the Easter Eggs.

"The challenge of this episode is it had to feel like a legitimate sequel to the old series, but also feel like an episode of our Flash.

What happens to Eddie going forward?

Eddie Thawne (Rick Cosnett) now knows Barry is The Flash, a secret that he must keep from his girlfriend Iris (Candice Patton) because Barry and her father Joe (Jesse L. Martin) say so.

"Eddie is not happy about how Barry and Joe have been handling this, and it starts to impact his relationship with Iris," said Kreisberg. "Eddie sort of says — how do you just lie to people like that? It makes Barry look at himself and go 'when did I become such a great liar?' "

The Flash airs Tuesdays at at 8 p.m. on The CW.

What did you think about the Harrison Wells reveal? Sound off in the comments.

Email: Aaron.Couch@THR.com
Twitter: @AaronCouch 

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