Here's today's latest casting news:

• Dermot Mulroney is set to star in writer-director Leigh Whannell's Insidious: Chapter 3, due out April 3, 2015.
• Jason Sudeikis is in talks to join Zach Galifianakis, Owen Wilson, and Kristen Wiig in Relativity's untitled armored car heist picture, formerly known as Loomis Fargo.
• Jack Reynor is being eyed by Casey Affleck to play troubled baseball player Josh Hamilton in the Relativity biopic.

Hit the jump for more on each casting story.

First up from Whannell himself is news of Mulroney's addition to Insidious: Chapter 3 in a lead role (via Twitter):

There's not much else in the way of plot or character descriptions at this time, but we can expect a bit more soon as the third installment of the Blumhouse Productions horror franchise is looking to go into production on July 7th.

Deadline reports

that Sudeikis is in talks to join Relativity's untitled heist picture in the role of a hitman.  Jared Hess directs from a Chris Bowman (The Wrong Brother) and Hubbel Palmer (Humble Pie) script, based on an original screenplay from Emily Spivey.  The fact-based story follows a disgruntled armored car driver who is persuaded to liberate $20 million from a bank vault with his team. As soon as the job is done, they double-cross him and leave him to fend for himself in Mexico as they live it up.  The story then follows his plan to exact revenge.  Doesn't sound like a comedy, but that's the tone they're going with since Galifianakis is set as the driver, with Wiig as his workplace crush who convinces him to perpetrate the heist.  The picture is expected to open August 14, 2015.

Deadline also reports that Affleck is looking to Reynor to play Josh Hamilton in the 33-year-old baseball player's life story.  You might recognize Reynor's name and/or face from this little movie he stars in this weekend called Transformers: Age of Extinction.  It looks like he might take to the diamond in writer-director Affleck's adaptation of Hamilton's co-authored book, "Beyond Belief: Finding The Strength To Come Back."  "Come back from what?" you might ask.  Apparently Hamilton struggled with a crack cocaine addiction which led to him being kicked out of his home and relegated to *gasp* janitorial duties at a baseball training facility.  Hamilton apparently turned his life around just in time to belt dozens of home runs at the 2008 All-Star Home Run Derby.  Hamilton continues to play for the MBL's Los Angeles Angels of Anaheim, so ... there's your ending.