Sorry everyone, this is not gonna picked up as a series

They kind of solved that problem at the very end, didn't they, with multiple Pollys, none of whom were the same actress.

It seems to me any casting issue here could be solved easily with a cameo appearance by Wu in a later episode where she gets stuck in a single timeline. Really, the same gambit could be applied to any cast member by having a similar looking actor replace them.

It's not unusual that roles are recast if a series gets picked up. Game of Thrones recast people all the time, The Mountain has been played by 3 actors now.

Recasting happens when need be. I think if this move garners enough interest/demand we could get a series. This could be sliders as it should have been.

I am reminded how wildly successful Stargate SG-1 was when it started with a recasted core. Kurt Russel and James Spader were good, but ultimately Michael Shanks and Richard Dean Anderson were probably did a better job than the originals would have been able to pull off I think. It would have been a different show had it not happened.

Lesson here, and elsewhere is this.
When starting off a series, it isn't that bad to recast roles, even if they are the central characters. It has been done before lots of times. And often times it turns out to be rather successful.

Putting the cast aside for the moment, the question is will Fox pick up the concept as a series? I'm presuming this was a FOX venture. They could sell the rights to making a series to another organization like Netflix or SyFy. What it will always come down to are the numbers($$) and whether FOX or someone else thinks there's an audience which will support the show.

Sliders, which this seems to be more closely related to than SG-1, was able to survive for a few seasons. Although this is not a remake, which Hollywood and the TV studios love to do, the (and excuse the use of the word here) parallels between the two shows is significant.

Although they didn't create the machine/building, they are a small but related group (by family or friendship), with one exception, moving through what could be an infinite number of parallel worlds while trying to get home, And they must change worlds on a regular basis or risk being trapped in that one world.

There some obvious differences to sliders as well. The Constance Wu "Polly" character for one. It's also easy to explain why there are three of her. Obviously from different parallel worlds, there are enough of them that they have managed to find each other in the building and have a plan. Most likely to finally get to the core world, which must be where the building originates. Either that or she is an agent of the core world. The father and mother also have a story to tell. They seem to be hiding out from whoever theose killers were. I suspect they work for the core world, possibly like bounty hunters, to take out violators of some core world code.

Just speculating here, but we may never know if the series is not picked up.

So they can't recast a different asian actress to continue the role? As if that has never happened before, ever, in any other pilot/series?

Well, good to know you don't know what you're talking about. Hopefully we'll see this picked up and continued asap.

Recasting would be a quick fix. But on the other hand, FOtB kinda sucks. Wouldn't be surprised if it got cancelled.