shared on social media by the podcast \u201cBack To You, Bob!\u201d<\/a> \u201cI can\u2019t believe I\u2019m not there. I can\u2019t believe I don\u2019t get to see my castmates, my beautiful cast in person.\u201d\n <\/p>\n\n Williams was a part of a group of several costars, including Katie Holmes and Joshua Jackson, who participated in the event.\n <\/p>\n
\n Van Der Beek said he had just wanted \u201cto stand on that stage and thank every single person in the theater for being here tonight.\u201d\n <\/p>\n
\n \u201cFrom the cast to the crew to everybody who\u2019s doing anything and has been so generous, and especially every single last one of you,\u201d the ailing actor said. \u201cYou are the best fans in the world.\u201d\n <\/p>\n
\n Lin-Manuel Miranda performed as an \u201cunderstudy\u201d for Van Der Beek at the fundraiser.\n <\/p>\n<\/p><\/div>\n