Bookies are now taking bets on who will escort the "Suits" star at the May 19 ceremony.
Meghan Markle has reportedly made a plea to her father to attend the royal wedding.
Thomas Markle wants to attend the royal wedding, according to published reports, but health setbacks and a staged photo scandal may keep him from making the trip.
"I hate the idea of missing one of the greatest moments in history and walking my daughter down the aisle," he's quoted as saying.
The father claims his daughter texted him and doesn't blame him for making a deal with the paparazzi to stage those photos.
But he has been hospitalized with chest pains, according to Meghan Markle's estranged sister, Samantha Grant, which may make the trip to the U.K. from California difficult.
"He sent me a message this morning saying that yes, he was [in the hospital]," she said. "He was going to a hospital in California to make sure he was clear to make the trip," she said. "There was a lot going on in the family, it really was a cracking point and he suffered a heart attack. So, all things considered, it is natural to not flip-flop but take a step back and say, 'I have to make sure I have medical clearance to do this.'"
Grant admits that she and her dad colluded with the paparazzi to take those now infamous photos seen 'round the world. Samantha met the wrath of TV personality Piers Morgan when she tried to explain herself on “Good Day Britain" Tuesday morning.
After calling the media "vultures," Morgan lashed out at her and said “there is no bigger media vulture than you!”
"That is really funny coming from a big vulture. He is kind of brutal," she told Inside Edition.
If Thomas Markle doesn't make it to London, who will walk the bride-to-be down the aisle? Bookies are taking bets, and the odds-on favorite is her mother Doria.
Inside Edition Special Royal Wedding Correspondent Amanda Holden discussed the likelihood of Doria replacing Meghan's father.
"I would actually love it if her mother walked her down the aisle. It would break yet another rule! She is a rule-breaker and that is why I love her," she said.
Holden added that she hopes all of the drama leading up to the wedding doesn't put a damper on the big day.
Another option is the father of the groom, Prince Charles. Prince William could also step up to walk his brother's bride down the aisle.
Meghan Markle could also show her independent spirit by walking alone to meet her prince at the altar.
Royal expert Victoria Arbiter discussed those scenarios with Inside Edition.
"He’s long talked about how much [Prince Charles] would have loved a daughter and this would give him the opportunity to walk this beautiful lady down the aisle to his waiting son. It would also show the royal family’s support of Meghan," she said.
Prince Harry is reportedly crushed over his soon-to-be wife’s family drama, believing he's to blame for all the scrutiny on her father.
In an interview the couple gave to the BBC following their November engagement announcement, Meghan Markle said that when it comes to her family drama, she and Prince Harry just push forward.
"We have just focused on who we are as a couple," she said. "So when you take all those extra layers away and all of that noise, I think it makes it really to just enjoy being together and tune all the rest of that out."
Meanwhile, preparations for the royal wedding are well underway.
Bunches of pink roses and other blossoms were loaded into a van outside the warehouse of royal wedding florist, Philippa Craddock.
“Where possible, Philippa will use flowers and plants that are in season and blooming naturally in May," a spokesperson for the palace has said.
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