Kai Hoffmann (born August 7, 1969) is a singer and writer from Bochum, Germany. Band member of and . Now, he is working as graphic designer .

Together with his brother and two friends, he founded the gothic rock band Secret Discovery in 1989 and became their lead singer. The band exists with interruptions and changing members until today and has released a high number of records.

After completing his training as graphic designer, he has been working as a freelancer since 1998. He created a set of movie posters, DVD and CD artwork for several record labels and artists, as well as advertising and promotional material.

For , he did the graphic design for all 42 CD covers for the radio play series, published in the years 2006 to 2011.