Under the Dome has added another new actor to the already large cast ahead of season 2.

New actress Grace Victoria Cox has joined Under the Dome, according to a new report by The Hollywood Reporter. Cox will play Melanie, a new potential love interest for Joe (Colin Ford). Melanie is described as a "beautiful and almost regal" girl from "the right side of the tracks," as opposed to Norrie (Mackenzie Lintz).

Cox's Melanie is one a few new actors who have joined the cast of Under the Dome for season 2.

Enstars reported Tuesday that Eddie Cahill (CSI: NY) and Karla Crome (Misfits) had signed on as series regulars. Cahill will play Sam, a former EMT who is also the brother-in-law of Big Jim (Dean Norris). Sam eventually forms a "deep connection" with Julia (Rachelle Lefevre).

Meanwhile, Crome will be playing Rebecca, a young schoolteacher and former army brat. Rebecca is expected to cause some trouble with Big Jim.

Under the Dome Season 2 Premiere: Air Date Announced & New Spoilers Include Big Jim Kissing Linda?

Under the Dome season 2 will also feature the return of another character who will haunt Big Jim, according to a new report by TV Guide. Pauline Rennie will make her big return in season 2, the mother of Junior (Alexander Koch) and wife of Big Jim.

Under the Dome will kill off two major characters in the season 2 premiere, which is being written by Stephen King, the author of the book on which the series is based.

Under the Dome season 2 premieres Monday, June 30 at 10 p.m. on CBS.

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Under the dome, Under the dome series