How I Met Your Mother cast celebrates 200th episode
How I Met Your Mother cast celebrates 200th episodeHowIMetYourMotherCBS/facebook

How I Met Your Mother will air its series finale episode on 31 March, ending a successful eight-year run.

However, fans of the show will have something to look forward to as developments on the proposed spinoff called How I Met Your Dad gain momentum.

According to a report in Screen Crush, earlier reports regarding the spinoff stated that the new lead female character would go by the name Sally, narrating the story to her future children (similar to the original series).

The latest reports on How I Met Your Dad's casting descriptions reveal that Sally is already married but clearly not to the father of the kids.

Here are the character descriptions of the new Ted, Marshall, Lily, Robin and Barney (via TVLine):

Sally: She's vibrant, messy and unpredictable — a 'female Peter Pan who has never grown up and has no idea of where she's going in life.' She's thinking of calling it quits with her husband of a year, Gavin. She'll lean on her circle of friends for advice and support through the inevitable divorce. That circle includes...

Juliet: Sally's sexy, flamboyant, energetic, party-girl BFF. She runs a successful fashion blog. She's delighted to learn Sally is ending things with the terminally boring Gavin.

Danny: Sally's older gay brother, a Type A, overachieving lawyer whom she shares little in common with. They nonetheless share a tight bond, although Sally's decision to move in with Danny after her split with Gavin promises to test that bond.

Todd: Danny's warm, outgoing husband and one of Sally's closest friends from college. Unlike Danny, Todd welcomes Sally into their home.

Frank: The head of IT for Juliet's fashion blog. He's a hot nerd. He has genuine feelings for Sally, but it's a one-sided flirtation. At least for the moment.

Narrator: It's Sally from the future. She's reliving the events of her past to her kids.

HIMYM creators Carter Bays and Craig Thomas have recruited Up All Night creator Emily Spivey to more accurately capture a female voice for the spinoff (Bob Saget does that in the original series).

The new cast from the spinoff was rumoured to feature in the final episodes of HIMYM but now it has reportedly been confirmed that How I Met Your Dad will get its own independent pilot episode introducing the show and its characters.