Tucker Smallwood as Photographer in 3:3 The Pen & Man in Mercedes in 3:6 The Parking Garage & Malcolm in 8:22 The Summer of George is the Mama's Boy (Restaurant Owner) in CYE 1:1 The Pants Tent
Philip Baker Hall as Lt. Bookman in 3:5 The Library & 9:24 The Finale Part 2 is Doctor Morrison in CYE 4:1 Mel's Offer
Cynthia Szigeti as Sandy in 3:5 The Library is Incest Group Leader in CYE 1:10 The Group
Cynthia Ettinger as Michele in 3:6 The Parking Garage is Fellatio Teacher in CYE 4:10 Opening Night
Mark Boone, Jr. as OTB Patron in 3:13 The Subway is Homeless Person in CYE 2:19 The Baptism
Dyana Ortelli as Chambermaid in 4:1 The Trip Part 1 is Dora, Larry's maid in CYE , & 3:10 The Grand Opening
Steve Skrovan as Tommy in 4:3 The Pitch & First guy listed for the Teleplay in 4:14 The Movie is Police Officer # 1 in CYE 2:3 Trick or Treat
Allan Wasserman as John Grossbard in 4:12 The Airport is HBO Executive Allan Wasserman in CYE 2:4 The Shrimp Incident & 2:10 The Massage
Eric Poppick as Maurice in 4:14 The Movie is Shlomo in CYE 4:9 The Survivor
Perry Anzilotti as Usher in 4:14 The Movie is Restaurant Captain in CYE 1:4 The Bracelet
Barry Diamond as Buckles the comedian in 4:14 The Movie is the fake doctor (Mental Patient) in CYE 2:8 Shaq
Rick Overton as The Drake in 4:22 The Handicap Spot & 4:24 The Pilot Part 2 is Angry Gentile in CYE 2:9 The Baptism
Christopher Darga as the car service driver (Driver) in 5:6 The Lipreader is the "f**king deuschebag" at the airport (Man in Airport #1) in CYE 2:19 The Baptism
Mark Beltzman as the guy who wants George's suit in 5:15 The Pie is the guy whose stepfather died in CYE Special
Michael G. Hagerty as Rudy in 5:18 The Raincoats Part 1 & 5:19 The Raincoats Part 2 is the AAMCO guy in CYE 1:7 Aamco
Melanie Smith as Rachel in 5:18 The Raincoats Part 1, 5:19 The Raincoats Part 2, 5:21 The Hamptons, & 5:22 The Opposite is the incest survivor Lucy Montone in CYE 1:10 The Group
Ken Thorley as Car Salesman in 6:8 The Mom-and-Pop Store is the Judge in CYE 4:6 The Car Pool Lane
Danny Breen as Guy With Glasses in 6:13 The Scofflaw is Larry's friend who wants to play golf with him (Donald) in CYE 2:3 Trick or Treat
Mark De Carlo as Alec Berg in 6:23 The Face Painter is Shaq's agent Albert Mayo in CYE 2:8 Shaq
June Kyoto Lu as Ruby in 6:24 The Understudy is the Car Wash Cashier in CYE 3:10 The Grand Opening
Amy Hill as Kim in 6:24 The Understudy is the Psychic in CYE 2:10 The Massage
Lou DiMaggio as Stagehand in 6:24 The Understudy is restaurant Investor in CYE 3:1 Chet's Shirt, & 3:10 The Grand Opening
Tim Bagley as Manager in 7:3 The Maestro is Shoe Salesman in CYE 1:2 Ted and Mary
Thom Barry as Manager in 7:5 The Hot Tub & as the same role but named Super in 7:6 The Soup Nazi is Golf Starter in 4:4 The Weatherman
Kathy Griffin as Sally Weaver in 7:17 The Doll & 9:13 The Cartoon is Herself in CYE 1:1 The Pants Tent
Patrick Bristow as Ethan in 7:19 The Wig Master is Steve/Choreographer in CYE 4:2 Ben's Birthday Party & 4:5 The 5 Wood
Jane A. Johnston as Todd’s Mother in 7:20 The Calzone and Woman in 8:22 The Summer of George is