The 27-year-old's character Jamie Hope was involved in a relationship with the actress's alter ego Louise Appleton during her final months on the show. However, problems in their romance led to Louise leaving the village behind in late 2008.
Carter has now told Inside Soap that he would be thrilled if Louise made a comeback to become a love rival of Gennie Walker (Sian Reese-Williams). However, he conceded that the plot twist is unlikely to happen because Symons is now living in her native Australia again.
"I'd love Louise to come back and stir up things between Jamie and his new girlfriend Gennie. It would be a great story," Carter explained.
"But I don't think Emily Symons would fancy the commute from Australia, where she's living now. I didn't know Symo, as I call her, until we started working together but we became really great friends. I miss her absolutely loads."
The actor also discussed which celebrities would be ideal guest stars on the Yorkshire-based programme.
He said: "Bill Murray or Steve Coogan, I reckon. Or even maybe Morrissey - there's a rumour going around that he's a fan of Emmerdale and I think our producers did try and get him on the show."
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