Rob Rubino (Bryan Callen) in Entourage

Bryan Callen as

Rob Rubino

Comedian Bryan Callen plays the part of Rob Rubino, one of Ari’s flaky agents, in episodes eight and fifteen of the show’s third season. When he makes his first appearance, Rob visits with Ari to inform him that Terrance is aware of his intent to open up his own agency. Like Ken Jeong, who also appears in S03E08, Bryan spent several years as a regular cast member on MADtv.