{"id":2502849,"date":"2026-07-15T10:39:01","date_gmt":"2026-07-15T10:39:01","guid":{"rendered":"https:\/\/celebrity.land\/en\/?p=2502849"},"modified":"2026-07-15T10:39:01","modified_gmt":"2026-07-15T10:39:01","slug":"14-famous-stars-you-forgot-appeared-on-seinfeld","status":"publish","type":"post","link":"https:\/\/celebrity.land\/en\/14-famous-stars-you-forgot-appeared-on-seinfeld\/","title":{"rendered":"14 Famous Stars You Forgot Appeared on \u2018Seinfeld\u2019"},"content":{"rendered":"

<\/p>\n

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Even devoted Seinfeld fans may be surprised by how many famous actors and comedians made guest appearances throughout the series. Some were already stars, while others were just getting started. Here’s a look back at 14 memorable cameos that helped make the beloved sitcom even more iconic.<\/p>\n

Megan Mullally<\/h2>\n
\"<span<\/span><\/div>\n

Jaxon \/ MEGA<\/span><\/p>\n

Before Will & Grace, Megan Mullally<\/strong><\/a> appeared as one of the series’ many memorable girlfriends. Her quirky charm shone through, foreshadowing the sharp comedic style she’d later bring to her role as Grace’s wealthy sidekick Karen Walker, a part that earned her two Emmy Awards in a Comedy Series.<\/p>\n

Teri Hatcher<\/h2>\n
\"<span<\/span><\/div>\n

ZUMAPRESS.com \/ MEGA<\/span><\/p>\n

Teri Hatcher<\/strong><\/a> made a splash in Seinfeld history with one of the most quotable guest appearances ever. Her turn as the “real and spectacular” Sidra left fans with a classic line that still gets repeated decades later, as reported by The Hollywood Reporter<\/a>.<\/p>\n

Lori Loughlin<\/h2>\n
\"<span<\/span><\/div>\n

LISA OConnor \/ AFF-USA.com \/ MEGA<\/span><\/p>\n

After Full House fame, Lori Loughlin<\/strong><\/a> stepped into Jerry’s orbit in a notable guest role, encouraging Jerry to express his emotions \u2014 which ended up leading to their breakup.<\/p>\n

Marisa Tomei<\/h2>\n
\"<span<\/span><\/div>\n

Lumeimages \/ MEGA<\/span><\/p>\n

Marisa Tomei<\/strong><\/a> found herself entangled in one of George Costanza<\/strong><\/a>‘s most hilarious plots. Tomei, who had previously won the Academy Award for Best Supporting Actress for her comedic performance in My Cousin Vinny, played a fictionalized version of herself.<\/p>\n

Jon Favreau<\/h2>\n
\"<span<\/span><\/div>\n

KCS Presse \/ MEGA<\/span><\/p>\n

Long before directing blockbusters, Jon Favreau<\/strong><\/a> had a blink-and-you’ll-miss-it Seinfeld cameo. This appearance was just the start for Favreau, who would go on to star in and direct the Iron Man franchise, with Iron Man and Iron Man 2 grossing a combined $1.3 billion at the worldwide box office, per the Hollywood Walk of Fame<\/a>.<\/p>\n

Courteney Cox<\/h2>\n
\"<span<\/span><\/div>\n

MEGA<\/span><\/p>\n

Before getting her breakthrough role on Friends,\u00a0Courteney Cox<\/strong><\/a> had a stint as Jerry’s pretend wife. Her down-to-earth comedic timing added a refreshing dynamic to the cast during her appearance.<\/p>\n

Jane Leeves<\/h2>\n
\"<span<\/span><\/div>\n

Janet Gough \/ AFF-USA.COM \/ MEGA<\/span><\/p>\n

Jane Leeves<\/strong><\/a>, beloved as Daphne on Frasier, charmed fans with her four-episode Seinfeld guest spot as “Marla the virgin.”<\/p>\n

Lauren Graham<\/h2>\n
\"<span<\/span><\/div>\n

Steven Bergman \/ AFF-USA.COM \/ MEGA<\/span><\/p>\n

Lauren Graham<\/strong><\/a>\u00a0played Jerry’s speed-dial ranking girlfriend on Seinfeld, showing off the humor and charm she would become famous for when taking on the lead role of Lorelai on Gilmore Girls in 2000.<\/p>\n

Carol Kane<\/h2>\n
\"<span<\/span><\/div>\n

Xavier Collin \/ Image Press Agency \/ MEGA<\/span><\/p>\n

Taxi alum and Emmy winner Carol Kane<\/strong><\/a>\u00a0made a memorable guest appearance on Seinfeld as Corinne in season 5, bringing her signature quirky comedy to the hit sitcom.<\/p>\n

Judge Reinhold<\/h2>\n
\"<span<\/span><\/div>\n

Lisa OConnor \/ AFF-USA.com \/ MEGA<\/span><\/p>\n

Judge Reinhold<\/strong><\/a> also left his mark on Seinfeld with a memorable cameo as “close talker” Aaron. His over-the-top, deadpan delivery fit seamlessly with the show’s offbeat humor.<\/p>\n

Jon Lovitz<\/h2>\n
\"<span<\/span><\/div>\n

Ron Sachs \u2013 CNP \/ MEGA<\/span><\/p>\n

Jon Lovitz<\/strong><\/a>, known for his pathological liar character on Saturday Night Live, played a similar part on the sitcom \u2013 his character faked having cancer!<\/p>\n

Jon Voight<\/h2>\n
\"<span<\/span><\/div>\n

FS2 \/ WENN \/ MEGA<\/span><\/p>\n

Jon Voight<\/strong><\/a> made a memorable cameo as a fictional version of himself, becoming the center of one of the show’s funniest running jokes after George is led to believe he purchased the actor’s car.<\/p>\n

James Spader<\/h2>\n
\"<span<\/span><\/div>\n

INB \/ WENN \/ MEGA<\/span><\/p>\n

James Spader<\/strong><\/a>‘s smug, self-assured portrayal of Jason Hanky fit perfectly with the show’s offbeat humor and made the character a standout.<\/p>\n

Bette Midler<\/h2>\n
\"<span<\/span><\/div>\n

CS5 \/ C.Smith \/ WENN \/ MEGA<\/span><\/p>\n

Bette Midler<\/strong><\/a> made a memorable guest appearance as herself in the season 6 finale, in which Jerry’s girlfriend is her Broadway understudy. Her performance showcased her comedic timing and added an extra dose of star power to one of the show’s most memorable episodes.<\/p>\n

This story 14 Famous Stars You Forgot Appeared on ‘Seinfeld’<\/a> first appeared on InTouch Weekly<\/a>. Follow InTouch Weekly<\/strong><\/a> on <\/a>Yahoo<\/strong><\/a> so you don’t miss what’s coming next.<\/p>\n<\/div>\n

\u2018 The preceding article may include information circulated by third parties \u2019 <\/em><\/p>\n

\u2018 Some details of this article were extracted from the following source www.yahoo.com \u2019 <\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Even devoted Seinfeld fans may be surprised by how many famous actors and comedians made guest appearances throughout the series. Some were already stars, while others were just getting started. Here’s a look back at 14 memorable cameos that helped make the beloved sitcom even more iconic. Megan Mullally Jaxon \/ MEGA Before Will & […]<\/p>\n","protected":false},"author":2,"featured_media":2502850,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"jnews-multi-image_gallery":[],"jnews_single_post":[],"jnews_primary_category":[],"jnews_social_meta":[],"footnotes":""},"categories":[25173],"tags":[359447,356294,388383,360069,362380,388379,355577,392272,382038],"class_list":["post-2502849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artists","tag-guest-appearances","tag-jon-favreau","tag-karen-walker","tag-marisa-tomei","tag-mega","tag-megan-mullally","tag-seinfeld","tag-steven-bergman","tag-teri-hatcher"],"jetpack_featured_media_url":"https:\/\/celebrity.land\/en\/wp-content\/uploads\/2026\/07\/14-Famous-Stars-You-Forgot-Appeared-on-\u2018Seinfeld.com2Fen2Fin_touch_weekly_articles_7662F530c1446be6843a68abd9b6066949d57.jpeg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/posts\/2502849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/comments?post=2502849"}],"version-history":[{"count":1,"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/posts\/2502849\/revisions"}],"predecessor-version":[{"id":2502851,"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/posts\/2502849\/revisions\/2502851"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/media\/2502850"}],"wp:attachment":[{"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/media?parent=2502849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/categories?post=2502849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/celebrity.land\/en\/wp-json\/wp\/v2\/tags?post=2502849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}