Switzerland: Garfield (2014)

FDC:

Germany: Little Prince (2014)

On matching Cards with Special Postmarks:

Denmark: Andersen's Fairy Tales (2014)

Austria: Maya the Bee (2014)

Used on a Card:

[Appendix] Japan: Peanuts (2014)

Used on a Card with Special Postmarks:

Germany: Traumfresserchen (2014)

Used on a Card with Special Postmark:

Germany: Erich Kästner Special Postmark (2014)

[Appendix] Japan: Sanrio Characters (2014)

Used on Cards:

China: Monkey King (2014)

Maxicard sent with three more stamps from the set:

[Appendix] Czech Republic: Jů and Hele (2014)

Used on a Card:

Germany: Uli Stein (2014)

On a matching Card with Special Postmark:

Used on Card with Special Postmark:

As these stamps are "For the Sport" I used them to get three different sport-themed postmarks in 2014, 2015 and 2016.

[Incomplete] Belgium: Tintin (2014)

Used on a Card:

Monaco: Marsupilami (2014)

Used on a Card:

Germany: Welfare - Hansel and Gretel (2014)

FDC:

Used on a Card with Special Postmark:

Finland: Tove Jansson (2014)

Not needed in mint condition.

On matching Cards:

[Incomplete] United Kingdom: Classic Children's TV (2014)

Used on a Card:

USA: Dr Seuss Special Postmark (2013)