Mari-An was one of the echidnas of the Lost Tribe, until Rob O'the Hedge rescued her from the Dark Legion and the two fell in love.  Now she is living in Mercia with Rob as his wife and gives birth to a son named Jon.  Then one day, Silver the Hedgehog travels to the past to find Sonic, asking Rob for his help and leaving Mari-An behind to take care of things.

Though Mari-An was originally from Angel Island, I can imagine her to have a British accent and a motherly tone, so that's what I'm looking for in this character.