Walter White, meet Liz Lemon. According to The Hollywood Reporter, Breaking Bad star Bryan Cranston and Kevin McAllister's mother, Catherine O'Hara, have signed on to guest star on 30 Rock during the show's final season. O'Hara will portray Kenneth the page's mother, and Cranston her "friend," Ron. No word yet on if Kenneth will uncover Ron's secret life as a meth cook and take him down to become a kingpin drug lord, but there's still time for spoilers to pop up somewhere.

The final season of 30 Rock is set to premiere on NBC on October 4th.

[via The Hollywood Reporter]