When the "Legends of Tomorrow" midseason finale came to a close, it was with a pretty big revelation: Rip Hunter (Arthur Darvill) is alive. Unfortunately, he's seemingly stuck in the 1970's as a film student named Phil.

While his memory loss seems to be very real -- and something that will play out over upcoming episodes -- eventually Rip's memory is bound to make its return. When it does, who will be the rightful captain of the Waverider?

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In Rip's absence, Sara Lance (Caity Lotz) has stepped up in a big way -- both to lead the team, and reinvigorate the show.

"That turned out to be the most pleasant surprise of the whole season," executive producer Marc Guggenheim says. "That's, I think, in large part due to Caity's amazing performance. It was like a hand in the glove, making that character captain."

Don't expect Sara to immediately vacate her captain's chair for Rip. She's certainly earned the right to call herself captain, and lead. Luckily though, that confrontation -- if it happens at all -- won't go down in the immediate future.

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"That moment's further off than I think you might expect. We have a lot of fun things we're doing with Rip even before we get there," Guggenheim teases. "The thing that's interesting about the storyline with Rip is we went into the year thinking that he doesn't function great at the straight man."

Knowing Darvill gets to be part of the fun -- after a previous season as, as Guggenheim puts it, the "wet blanket on everything" -- is encouraging. As any "Doctor Who" fan knows, he's a very funny guy, and great specifically at finding the joy in calamity. Now, finally, it looks like he'll have that in common with Rip Hunter.

"Legends of Tomorrow" airs Tuesdays at 9 p.m. ET/PT on The CW.

Posted by:Chris E. Hayner

Chris E. Hayner is equal parts nerd, crazy person and coffee. He watches too much TV, knows more about pro wrestling than you do and remembers every single show from the TGIF lineup. You may have seen him as a pro-shark protester in "Sharknado 3." His eventual memoir will be called "You're Wrong, Here's Why..." TV words to live by: "I'm a firm believer that sometimes it's right to do the wrong thing."