Ralph Caspers (born 18 January 1972 in Pasir Panjang, Borneo, Indonesia) is a German television presenter, author, screenwriter, and actor.

After graduating from the Antoniuskolleg in Neunkirchen-Seelscheid in 1991, Caspers, who originally wanted to become a designer, worked in pathology, in an advertising agency, as well as in various TV production companies.

[3] In a video for the television program Quarks, it was revealed that Caspers suffers from face blindness and, as a result, was afraid that he would not recognize his newborn child.

At the 2022 re:publica, a conference that deals with the Web 2.0, he stated that he "appreciates Klexikon as a Wikipedia for Kids, because some articles there are really complex.

[8] Caspers started to work for the WDR (Westdeutscher Rundfunk) in 1996 and hosted the "Maus Club" alongside Shary Reeves and Tina Halverscheid until 2000.

Locations include Japan (Tokyo) in 2005, Turkey (Ankara) in 2008, India (New Delhi) in 2009, South Africa (Pretoria/Tshwane) in 2010, Brazil (Brasília) in 2012, Greece (Athena) in 2023, Iceland (Reykjavík) in 2014, Poland (Warsaw) in 2016, the UK (London) in 2017, France (Paris) in 2019, and Denmark (Copenhagen) in 2020.

He also visited the Aardman Studios in Bristol (England), where the tv-series of Shaun the Sheep is produced, that is also part of the show Die Sendung mit der Maus.

[citation needed] From 1999 to 2002, Caspers run his own talk show for kids on the children's channel KiKA called QuasselCaspers.

Since 2010, Caspers moderates the WDR tv-show Quarks substitutional; from 2019 to 2021 taking turns with Mai Thi Nguyen-Kim and after that with Florence Randrianarisoa.

Since 2011, he presented the show Du bist kein Werwolf – Über Leben in der Pubertät (You are not a Werewolf – Living through puberty) together with Christine Henning on the German Tv-Channel KiKA.

[9] Since April 2024, he has been part of the expert trio, alongside Marwa Eldessouky and Jens Riewa, on the quiz show Frag mich was Leichteres!.