Actress Marisa Tomei will join Martin Sheen and Blair Underwood as participants in NBC’s reality show Who Do You Think You Are, EW has learned exclusively. The third season is expected to premiere early next year.

The show will follow the three actors — like others before them — as they research their family tree and discover unknown relatives. The show is from Executive Producers Lisa Kudrow (Friends) and Dan Bucatinsky (Lipstick Jungle) and is an adaptation of a hit British television documentary series.

The celebrities featured in the second season were Gwyneth Paltrow, Tim McGraw, Rosie O’Donnell, Steve Buscemi, Kim Cattrall, Lionel Richie, Vanessa Williams and Ashley Judd.

More celebrities for season three will be announced at a later date.