Siddharth Jadhav is an Indian stage, television, and film actor and comedian who primarily works in the Marathi film industry. Siddharth began his acting career at a young age and also received several awards including the Best Actor Award at the Ravikiran Balnatya Spardha in 1996: he was 15 at that time. He continued to work in theatre and subsequently began appearing in television shows such as Ek Shunya Baburao, Hasa Chakat Fu, Ghadlay Bighadlay, and Daar Ughad Na Gade. However, it was in 2006 that he gained wide recognition for his role as Sattu Supari in Rohit Shetty`s highly successful comedy movie Golmaal: Fun Unlmited (2006). In the same year he appeared in popular Marathi movies such as Jatra and Aga Bai Arrecha!.

Known for his impeccable comic timing, Siddarth grabbed his first lead role in 2007 with the movie Bakula Namdeo Ghotale. The following year he was highly praised for essaying the role of Dhanaji, a man who suffers from Kleptomania - a disorder that makes him steal things, in the movie De Dhakka (2008). He has since then appeared in movies such as Me Shivajiraje Bhosale Boltoy (2009), City of Gold (2010), Kho-Kho (2013), Shahsan (2015), Manus Ek Mati (2017), Ye Re Ye Re Paisa (2017), Mauli (2018), Simmba (2018), Khichik (2019) and Dhurala (2020). His 2021 release includes the Bollywood movie Radhe: Your Most Wanted Bhai.

Siddharth Jadhav continued his work as an Actor in 2022 with the Marathi films Lochya Zaala Re (2022), Tamasha Live (2022), De Dhakka 2 (2022), Hawahawai (2022), and Baal Bhaarti (2022), along with the Hindi comedy drama Cirkus (2022). In 2023, he featured in the Marathi comedy Aflatoon (2023).

His 2024 credits as an Actor include the Marathi films Lagna Kallol (2024), Hazaar Vela Sholay Pahilela Manus (2024), Navra Maza Navsacha 2 (2024), and Ek Daav Bhootacha (2024), as well as the English mystery comedy The Defective Detectives (2024). In 2025, he performed as an Actor in the Marathi comedy thriller Ye Re Ye Re Paisa 3 (2025), the drama Ata Thambaycha Naay (2025), the comedy thriller Aatli Baatmi Futlii (2025), and the mystery drama Kairee (2025). His filmography also includes his 2026 role as an Actor in the silent comedy Gandhi Talks (2026) and the comedy drama Punha Ekda Sade Made Teen (2026).