‘The Big Bang Theory’ spoilers for season 10 include news that ‘Sons of Anarchy’ alum Katey Sagal has been cast to play Penny’s [Kaley Cuoco] mother Susan. Also joining the cast of ‘TBBT’ is ’30 Rock’ alum Jack McBrayer as Randall, Penny’s brother.
Executive producer Steve Molaro shared ‘The Big Bang Theory’ spoilers about Katey and Jack joining the … Keep Reading