Rob Reineris a name that many know for his beloved films. The actor, writer, and director is bringing fans a long-awaited sequel to This Is Spinal Tap with the release of Spinal Tap II: The End Continues, but Reiner has also made a big splash this year with his return to acting. No, not in Spinal Tap II, which he does act in, but in The Bear Season 4. The hit FX series stars Jeremy Allen Whiteas Carmy Berzatto, a chef who has to deal with his own insecurities, family issues, and the stress of the kitchen. And at the premiere for Spinal Tap II, Collider's Aidan Kelleyasked Reiner about joining the "exclusive club" of guest stars who have graced the kitchen of The Bear.