90210 – Brother From Another Mother
WOLFGANG PUCK GUEST STARS — Liam experiences some symptoms of post-traumatic stress disorder while preparing to testify against Ashley (guest star Natalie Morales), while Annie is furious when Naomi tracks down their half-brother Mark (guest star Charlie Weber), a chef who owns a gourmet food truck. Wolfgang Puck has a cameo role as a celebrity judge in a cooking competition. Silver is overbearing with her surrogate Michaela (guest star Lyndon Smith), whom Dixon discovers has an amazing singing voice. Trevor Donovan, Michael Steger and Jessica Lowndes also star. Benny Boom directed the episode written by Chris Atwood.