Jeremy Irons will be playing Ozymandias in HBO's Watchmen series and Legion's Jean Smart has joined the show in a role with possible connections to the Comedian, according to /Film.
Irons will reportedly play an older version of Ozymandias, which would be inline with showrunner Damon Lindelof's previous statements that the show would take places decades after the events of the original comic book series.
Smart will reportedly play an FBI agent named Blake (last name), which would seemingly tie in to the the Comedian - a.k.a. Edward Blake. Speculating further, the Comedian is second Silk Spectre's biological father; given the time period, it may be possible that Smart could be playing an older version of Silk Spectre.
Watchmen is scheduled to debut sometime in 2019 on HBO.