| Lucca Mortis | 2019 | | Movie |
| All You Need Is Crime | 2019 | Sebastiano (as Alessandro Gassman) | Movie |
| Mio fratello rincorre i dinosauri | 2019 | Davide Mazzariol | Movie |
| An Almost Ordinary Summer | 2019 | Carlo (as Alessandro Gassman) | Movie |
| The Stolen Caravaggio | 2018 | Alessandro Pes (as Alessandro Gassman) | Movie |
| Beata ignoranza | 2017 | Filippo (as Alessandro Gassman) | Movie |
| Cinderella the Cat | 2017 | Primo Gemito (voice, as Alessandro Gassman) | Movie |
| I bastardi di Pizzofalcone | 2017 | Ispettore Giuseppe Lojacono | TV Show |
| The Prize | 2017 | Oreste Passamonte (as Alessandro Gassman) | Movie |
| Onda su onda | 2016 | Ruggero (as Alessandro Gassman) | Movie |
| Non c'è più religione | 2016 | Bilal (as Alessandro Gassman) | Movie |
| An Italian Name | 2015 | Paolo (as Alessandro Gassman) | Movie |
| God Willing | 2015 | Don Pietro (as Alessandro Gassman) | Movie |
| The Last Will Be the Last | 2015 | Stefano Colacci (as Alessandro Gassman) | Movie |
| Tutta colpa di Freud | 2014 | Alessandro (as Alessandro Gassman) | Movie |
| The Dinner | 2014 | Massimo (as Alessandro Gassman) | Movie |
| The Family | 2012 | Edoardo Rengoni / Edoardo | TV Show |
| Razza bastarda | 2012 | Roman (as Alessandro Gassman) | Movie |
| Viva l'Italia | 2012 | Valerio Spagnolo (as Alessandro Gassman) | Movie |
| Un Natale con i fiocchi | 2012 | Alex Morelli | TV Movie |
| Baciato dalla fortuna | 2011 | Silvano Grandoni (as Alessandro Gassman) | Movie |
| Ex - Amici come prima! | 2011 | Massimo Marangoni (as Alessandro Gassman) | Movie |
| Un Natale per due | 2011 | Claudio (as Alessandro Gassman) | TV Movie |
| Basilicata Coast to Coast | 2010 | Rocco Santamaria (as Alessandro Gassman) | Movie |
| La donna della mia vita | 2010 | Dott. Giorgio Forti (as Alessandro Gassman) | Movie |
| The Father and the Foreigner | 2010 | Diego Marini (as Alessandro Gassman) | Movie |
| Ex | 2009 | Davide (as Alessandro Gassman) | Movie |
| David's Birthday | 2009 | Diego (as Alessandro Gassman) | Movie |
| Four Single Fathers | 2009 | Jacopo (as Alessandro Gassman) | Movie |
| Christmas in Beverly Hills | 2009 | Marcello (as Alessandro Gassman) | Movie |
| Quiet Chaos | 2008 | Carlo Paladini (as Alessandro Gassman) | Movie |
| Pinocchio | 2008 | Carlo Collodi | TV Show |
| Il seme della discordia | 2008 | Mario (as Alessandro Gassman) | Movie |
| La sacra famiglia | 2006 | Joseph (as Alessandro Gassman) | TV Movie |
| I Cesaroni | 2006 | Oreste / Francesco | TV Show |
| Don't Make Any Plans for Tonight | 2006 | Giorgio (as Alessandro Gassman) | Movie |
| Codice rosso | 2006 | Pietro Vega | TV Show |
| Monday - Il mio giorno | 2006 | Alex (as Alessandro Gassman) | Short Film |
| Transporter 2 | 2005 | Gianni Chellini (as Alessandro Gassman) | Movie |
| Dalida | 2005 | Luigi Tenco (as Alessandro Gassman) | TV Movie |
| Separazione, La | 2005 | Antonio (as Alessandro Gassman) | Short Film |
| Guardians of the Clouds | 2004 | Batino (as Alessandro Gassman) | Movie |
| Le stagioni del cuore | 2004 | Sergio Valenti | TV Show |
| I banchieri di Dio | 2002 | Francesco Pazienza (as Alessandro Gassman) | Movie |
| La guerra è finita | 2002 | Claudio (as Alessandro Gassman) | TV Movie |
| Crociati | 2001 | Peter (as Alessandro Gassman) | TV Movie |
| Lourdes | 2001 | Bernard / Henri Guillaumet (as Alessandro Gassman) | TV Movie |
| Piccolo mondo antico | 2001 | Franco Maironi (as Alessandro Gassman) | TV Movie |
| Coconut Heads | 2000 | Pietro (as Alessandro Gassman) | Movie |
| La bomba | 1999 | Nino (as Alessandro Gassman) | Movie |
| Toni | 1999 | Toni (as Alessandro Gassman) | Movie |
| I miei più cari amici | 1998 | Rossano (as Alessandro Gassman) | Movie |
| Steam: The Turkish Bath | 1997 | Francesco (as Alessandro Gassman) | Movie |
| Nuda proprietà vendesi | 1997 | Riccardo Martelli (as Alessandro Gassman) | TV Movie |
| Lovest | 1997 | Johnny (as Alessandro Gassman) | Movie |
| Facciamo fiesta | 1997 | Sandro (as Alessandro Gassman) | Movie |
| Nessuno escluso | 1997 | Nicola Fiorillo (as Alessandro Gassman) | TV Movie |
| Samson and Delilah | 1996 | Amrok (as Alessandro Gassman) | TV Show |
| Stella's Favor | 1996 | Rodolfo (as Alessandro Gassman) | Movie |
| Uomini senza donne | 1996 | Alex (as Alessandro Gassman) | Movie |
| A Month by the Lake | 1995 | Vittorio Balsari (as Alessandro Gassman) | Movie |
| Huevos de oro | 1993 | El amigo de Melilla (as Alessandro Gassman) | Movie |
| La famiglia Ricordi | 1993 | Gaetano Donizetti | TV Show |
| Due volte vent'anni | 1993 | Dominique (as Alessandro Gassman) | TV Movie |
| Ostinato destino | 1992 | Marcello Rambaldi (as Alessandro Gassman) | Movie |
| Quando eravamo repressi | 1992 | Federico (as Alessandro Gassman) | Movie |
| Schneewittchen und das Geheimnis der Zwerge | 1992 | Jester (as Alessandro Gassman) | TV Movie |
| Ulisse e la balena bianca | 1992 | Ismael (as Alessandro Gassman) | TV Movie |
| Comprarsi la vita | 1991 | Fabrizio (as Alessandro Gassman) | TV Movie |
| A Season of Giants | 1990 | Francesco Granacci | TV Show |
| L'altro enigma | 1988 | Il figlio (as Alessandro Gassman) | TV Movie |
| La monaca di Monza | 1987 | Giampaolo Osio (as Alessandro Gassman) | Movie |
| Un bambino di nome Gesù | 1987 | Adult Jesus (as Alessandro Gassman) | TV Movie |
| Eurocops | 1987 | | TV Show |
| Il giudice istruttore | 1987 | Giulio | TV Show |
| Big Deal After 20 Years | 1985 | Walter (uncredited) | Movie |
| Windsurf - Il vento nelle mani | 1984 | | Movie |
