Quick Answer
Billy Bob Thornton is expected back as Tommy Norris, and the story strongly points to returns for Demi Moore, Andy Garcia, Ali Larter, Jacob Lofland, Michelle Randolph, Paulina Chavez, Kayla Wallace, Sam Elliott, James Jordan, and Colm Feore. Paramount+ has not yet published the final Season 3 cast list.
Billy Bob Thornton
Thornton has publicly pushed back on exit rumors and remains the center of the show.
Sam Elliott
Elliott has said he is excited for Season 3 and had a two-year Landman deal before renewal.
Demi Moore and Andy Garcia
Cami and Gallino are essential to the Season 2 ending, making both characters important for the next chapter.
Jon Hamm
Monty Miller died in Season 1, so any return would likely be limited to flashback or archival use.
High-confidence returns
Billy Bob Thornton is the anchor of Landman Season 3. The Season 2 finale does not remove Tommy from the story; it gives him a new company and a new set of enemies.
Jacob Lofland, Paulina Chavez, Kayla Wallace, James Jordan, Colm Feore, and Sam Elliott all connect directly to Tommy's new operation at the end of Season 2. That makes them central to the next story unless the scripts make a major break.
Billy Bob Thornton as Tommy Norris
The new company arc depends on him.
Jacob Lofland as Cooper Norris
Cooper's wells and personal life are both Season 3 engines.
Kayla Wallace as Rebecca Falcone
Rebecca's legal skill becomes even more important once Tommy is independent.
Sam Elliott as T.L. Norris
T.L. gives the Norris family business a generational frame.
Expected but not formally listed by Paramount+ yet
Demi Moore's Cami Miller and Andy Garcia's Gallino Morrell are the two biggest power players left hanging by Season 2. Cami still has M-Tex, while Gallino has money inside Tommy's new company.
Ali Larter and Michelle Randolph are also expected to remain important because Angela and Ainsley keep the Norris family story active outside the oilfield.
How to phrase this for SEO
Do not write that Paramount+ has confirmed every returning actor unless a new press release appears. The better wording is: the core Season 2 cast is expected to return, with Billy Bob Thornton leading the next chapter.
That phrasing answers search intent while avoiding an unsupported cast claim.
Season 3 FAQ
Is Billy Bob Thornton returning for Landman Season 3?
Yes, all reliable public information points to Billy Bob Thornton returning as Tommy Norris.
Is Demi Moore returning for Season 3?
Paramount+ has not released a full Season 3 cast list, but Cami Miller's Season 2 ending makes Demi Moore's character important to the next story.
Will Jon Hamm return in Season 3?
Jon Hamm's character Monty Miller died earlier in the series, so a Season 3 return would likely require a flashback or archival scene.